{"id":26186,"date":"2025-07-11T10:40:21","date_gmt":"2025-07-11T03:40:21","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=26186"},"modified":"2025-07-11T13:35:35","modified_gmt":"2025-07-11T06:35:35","slug":"phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/","title":{"rendered":"Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed: \u0110\u1ecbnh ngh\u0129a, ph\u00e2n lo\u1ea1i v\u00e0 c\u00e1c d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Dinh_nghia_cua_phan_ung_oxi_hoa_khu_la_gi\" >\u0110\u1ecbnh ngh\u0129a c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Giam_%E2%80%93_oxy_hoa\" >Gi\u1ea3m &#8211; oxy h\u00f3a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Giam_%E2%80%93_chat_oxy_hoa\" >Gi\u1ea3m &#8211; ch\u1ea5t oxy h\u00f3a<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Cach_xac_dinh_cac_phan_ung_oxi_hoa_khu\" >C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Cac_loai_phan_ung_oxi_hoa_khu\" >C\u00e1c lo\u1ea1i ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#4_buoc_de_chuan_bi_phuong_trinh_hoa_hoc_cua_phan_ung_oxi_hoa_khu\" >4 b\u01b0\u1edbc \u0111\u1ec3 chu\u1ea9n b\u1ecb ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Tam_quan_trong_%E2%80%93_Tam_quan_trong_cua_phan_ung_oxi_hoa_khu_trong_cuoc_song\" >T\u1ea7m quan tr\u1ecdng &#8211; T\u1ea7m quan tr\u1ecdng c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed trong cu\u1ed9c s\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Phan_ung_oxi_hoa_khu_va_cac_bai_tap_ap_dung\" >Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed v\u00e0 c\u00e1c b\u00e0i t\u1eadp \u00e1p d\u1ee5ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Bai_tap_1_Chon_cac_tuyen_bo_chinh_xac_Sach_giao_khoa_Hoa_hoc_8_Nha_xuat_ban_Giao_duc_Viet_Nam\" >B\u00e0i t\u1eadp 1: Ch\u1ecdn c\u00e1c tuy\u00ean b\u1ed1 ch\u00ednh x\u00e1c (S\u00e1ch gi\u00e1o khoa H\u00f3a h\u1ecdc 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Bai_tap_2_Tim_phan_ung_oxy_hoa_khu_va_loi_ich_tac_hai_cua_moi_phan_ung\" >B\u00e0i t\u1eadp 2: T\u00ecm ph\u1ea3n \u1ee9ng oxy h\u00f3a kh\u1eed v\u00e0 l\u1ee3i \u00edch\/ t\u00e1c h\u1ea1i c\u1ee7a m\u1ed7i ph\u1ea3n \u1ee9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Bai_tap_3_Bai_tap_so_5_trong_sach_giao_khoa_8_Nha_xuat_ban_Giao_duc\" >B\u00e0i t\u1eadp 3: B\u00e0i t\u1eadp s\u1ed1 5 trong s\u00e1ch gi\u00e1o khoa 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Bai_tap_4_Tim_phan_ung_oxi_hoa_khu_Bai_tap_1_Hoa_hoc_SGK_10_Nha_xuat_ban_giao_duc\" >B\u00e0i t\u1eadp 4: T\u00ecm ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed (B\u00e0i t\u1eadp 1, H\u00f3a h\u1ecdc SGK 10, Nh\u00e0 xu\u1ea5t b\u1ea3n gi\u00e1o d\u1ee5c)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/phan-ung-oxi-hoa-khu-dinh-nghia-phan-loai-va-cac-dau-hieu-nhan-biet\/#Mot_so_bai_tap_ve_phan_ung_oxy_hoa_de_hoc_sinh_thuc_hanh\" >M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 ph\u1ea3n \u1ee9ng oxy h\u00f3a \u0111\u1ec3 h\u1ecdc sinh th\u1ef1c h\u00e0nh<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec? T\u00e1c nh\u00e2n kh\u1eed, ch\u1ea5t oxy h\u00f3a l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang? B\u00e0i vi\u1ebft sau \u0111\u00e2y c\u1ee7a kh\u1ec9 s\u1ebd gi\u00fap b\u1ea1n tr\u1ea3 l\u1eddi t\u1ea5t c\u1ea3 c\u00e1c c\u00e2u h\u1ecfi tr\u00ean.<\/p>\n<p>                                    <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dinh_nghia_cua_phan_ung_oxi_hoa_khu_la_gi\"><\/span>\u0110\u1ecbnh ngh\u0129a c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">S\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc 8 (Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam) \u0111\u00e3 x\u00e1c \u0111\u1ecbnh ph\u1ea3n \u1ee9ng gi\u1ea3m oxi h\u00f3a kh\u1eed.<\/p>\n<p dir=\"ltr\">Theo \u0111\u00f3, &#8220;<em>Ph\u1ea3n \u1ee9ng oxy h\u00f3a &#8211; oxy h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc x\u1ea3y ra c\u00f9ng l\u00fac c\u1ea3 oxy h\u00f3a v\u00e0 kh\u1eed<\/em>\u201d.<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 kh\u00e1i ni\u1ec7m ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed, ch\u00fang ta c\u1ea7n l\u00e0m r\u00f5 \u0111\u1ecbnh ngh\u0129a v\u1ec1 vi\u1ec7c gi\u1ea3m &#8211; oxy h\u00f3a v\u00e0 gi\u1ea3m t\u00e1c nh\u00e2n &#8211; ch\u1ea5t oxy h\u00f3a c\u0169ng nh\u01b0 ph\u00e2n t\u00edch m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/phan-ung-oxi-hoa-khu-1.jpg\" alt=\"T\u00ecm hi\u1ec3u v\u1ec1 ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Giam_%E2%80%93_oxy_hoa\"><\/span>Gi\u1ea3m &#8211; oxy h\u00f3a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Gi\u1ea3m<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Trong ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a oxit s\u1eaft (III) (FE2O3) v\u00e0 kh\u00ed hydro (H2) \u1edf nhi\u1ec7t \u0111\u1ed9 cao, kh\u00ed hydro s\u1ebd chi\u1ebfm nguy\u00ean t\u1ed1 oxy trong oxit s\u1eaft (III). Ch\u00fang t\u00f4i c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng sau:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Fe2O3 + 3H2 -&gt; 2Fe + 3H2O<\/p>\n<p dir=\"ltr\">Nh\u00ecn v\u00e0o ph\u1ea3n \u1ee9ng tr\u00ean, ch\u00fang ta th\u1ea5y r\u1eb1ng c\u00f3 m\u1ed9t qu\u00e1 tr\u00ecnh t\u00e1ch c\u00e1c nguy\u00ean t\u1eed oxy kh\u1ecfi h\u1ee3p ch\u1ea5t Fe2O3 v\u00e0 ch\u00fang ta n\u00f3i r\u1eb1ng c\u00f3 s\u1ef1 gi\u1ea3m Fe2O3 t\u1ea1o ra Fe.<\/p>\n<p dir=\"ltr\">Trong m\u1ed9t s\u1ed1 ph\u1ea3n \u1ee9ng kh\u00e1c v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao kh\u00e1c nhau, kh\u00ed hydro c\u0169ng c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c nguy\u00ean t\u1ed1 oxy c\u1ee7a m\u1ed9t s\u1ed1 kim lo\u1ea1i kh\u00e1c nh\u01b0 \u0111\u1ed3ng (II) oxit (CuO), Mercury (II) oxit (MgO), ch\u00ec (II) oxit (PBO) &#8230;<\/p>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn: Vi\u1ec7c gi\u1ea3m l\u00e0 s\u1ef1 ph\u00e2n t\u00e1ch oxy kh\u1ecfi h\u1ee3p ch\u1ea5t.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Qu\u00e1 tr\u00ecnh oxy h\u00f3a<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Qu\u00e1 tr\u00ecnh oxy h\u00f3a l\u00e0 t\u00e1c d\u1ee5ng c\u1ee7a oxy v\u1edbi m\u1ed9t ch\u1ea5t. V\u00ed d\u1ee5, v\u1edbi ph\u1ea3n \u1ee9ng Fe2O3 + 3H2 -&gt; 2FE + 3H2O, s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nguy\u00ean t\u1eed oxy trong Fe2O3 v\u1edbi H2. K\u1ebft lu\u1eadn r\u1eb1ng qu\u00e1 tr\u00ecnh oxy h\u00f3a H2 h\u00ecnh th\u00e0nh H2O. <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Giam_%E2%80%93_chat_oxy_hoa\"><\/span>Gi\u1ea3m &#8211; ch\u1ea5t oxy h\u00f3a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong ph\u1ea3n \u1ee9ng s\u1eaft (III) oxit (Fe2O3) v\u00e0 kh\u00ed Hidro (H2) \u1edf tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ea5y r\u1eb1ng H2 l\u00e0 m\u1ed9t ng\u01b0\u1eddi s\u1eed d\u1ee5ng oxy n\u00ean n\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 t\u00e1c nh\u00e2n kh\u1eed v\u00e0 Fe2O3 l\u00e0 m\u1ed9t oxy n\u0103ng su\u1ea5t n\u00ean n\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 oxy h\u00f3a.<\/p>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn: Trong ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed, oxy h\u00f3a kh\u1eed l\u00e0 oxy c\u1ee7a m\u1ed9t ch\u1ea5t kh\u00e1c. Trong khi \u0111\u00f3, qu\u00e1 tr\u00ecnh oxy h\u00f3a l\u00e0 m\u1ed9t oxy n\u0103ng su\u1ea5t cho c\u00e1c ch\u1ea5t kh\u00e1c.<\/p>\n<p dir=\"ltr\">T\u1eeb nh\u1eefng minh h\u1ecda v\u00e0 \u0111\u1ecbnh ngh\u0129a n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u01b0a ra k\u1ebft lu\u1eadn cho c\u00e2u h\u1ecfi &#8220;Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec?&#8221;:<\/p>\n<p dir=\"ltr\"><em>&#8220;Gi\u1ea3m v\u00e0 oxy h\u00f3a l\u00e0 hai qu\u00e1 tr\u00ecnh ng\u01b0\u1ee3c l\u1ea1i nh\u01b0ng x\u1ea3y ra \u0111\u1ed3ng th\u1eddi trong c\u00f9ng m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. Ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng oxy h\u00f3a &#8211; oxi h\u00f3a kh\u1eed.&#8221;<\/em> (S\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam).<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/phan-ung-oxi-hoa-khu-5.jpg\" alt=\"Hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a m\u1edf r\u1ed9ng ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">M\u1ed9t \u0111\u1ecbnh ngh\u0129a v\u1ec1 s\u1ef1 m\u1edf r\u1ed9ng c\u1ee7a c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed c\u0169ng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi c\u00e1c electron. Theo \u0111\u00f3: &#8220;<em>Ph\u1ea3n \u1ee9ng oxy h\u00f3a &#8211; oxy h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, c\u00f3 s\u1ef1 thay \u0111\u1ed5i electron gi\u1eefa c\u00e1c ch\u1ea5t ph\u1ea3n \u1ee9ng ho\u1eb7c qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u00f3 s\u1ef1 thay \u0111\u1ed5i v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1.<\/em> (S\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc 10, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam).<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_xac_dinh_cac_phan_ung_oxi_hoa_khu\"><\/span>C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u1ef1a tr\u00ean \u0111\u1ecbnh ngh\u0129a c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed, nh\u1eefng g\u00ec \u1edf tr\u00ean ch\u00fang ta c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ea5y d\u1ea5u hi\u1ec7u c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec. Theo \u0111\u00f3, d\u1ea5u hi\u1ec7u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 thay \u0111\u1ed5i s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a m\u1ed9t ph\u1ea7n t\u1eed.   <\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5, trong ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a oxit s\u1eaft (III) (Fe2O3) v\u00e0 hydro t\u1ea1o ra s\u1eaft (Fe) v\u00e0 n\u01b0\u1edbc (H2O), thay \u0111\u1ed5i s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a H2 v\u00e0 Fe2O3 (H2 l\u00e0 oxy; Fe2O3 l\u00e0 n\u0103ng su\u1ea5t oxy).<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_loai_phan_ung_oxi_hoa_khu\"><\/span>C\u00e1c lo\u1ea1i ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau nh\u01b0 d\u1ea1ng \u0111\u01a1n gi\u1ea3n, ph\u1ea3n \u1ee9ng ph\u00e2n t\u1eed, t\u1ef1 oxy h\u00f3a ho\u1eb7c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed ph\u1ee9c t\u1ea1p.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed \u0111\u01a1n gi\u1ea3n: \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed c\u00f3 qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 gi\u1ea3m d\u1ea7n. <em>V\u00ed d\u1ee5: Al + 6hno3 \u2192 Al (NO3) 3 + 3NO2 + 3H2O<\/em><\/p>\n<\/li>\n<\/ul>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng ph\u00e2n t\u1eed: L\u00e0 ph\u1ea3n \u1ee9ng ch\u1ec9 x\u1ea3y ra trong m\u1ed9t ph\u00e2n t\u1eed. <em>V\u00ed d\u1ee5: 2KCLO3 \u2192 2KCL + 3O2<\/em><\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng t\u1ef1 oxy h\u00f3a: l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc trong \u0111\u00f3 s\u1ef1 gia t\u0103ng ho\u1eb7c gi\u1ea3m qu\u00e1 tr\u00ecnh oxy h\u00f3a ch\u1ec9 x\u1ea3y ra tr\u00ean m\u1ed9t y\u1ebfu t\u1ed1.<em> V\u00ed d\u1ee5: 2Cl2 + 4naoh \u2192 2NaCl + 2NaClo + 2H2O<\/em><\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed ph\u1ee9c t\u1ea1p: bao g\u1ed3m c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u1edbi c\u00e1c t\u1eeb v\u00e0 ph\u1ea3n \u1ee9ng thay \u0111\u1ed5i s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a h\u01a1n 2 nguy\u00ean t\u1eed. <em>V\u00ed d\u1ee5: Cu2S + HNO3 \u2192 Cu (NO3) 2 + CUSO4 + NO + H2O<\/em><\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"4_buoc_de_chuan_bi_phuong_trinh_hoa_hoc_cua_phan_ung_oxi_hoa_khu\"><\/span>4 b\u01b0\u1edbc \u0111\u1ec3 chu\u1ea9n b\u1ecb ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 t\u1ea1o ra c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed, ch\u00fang t\u00f4i d\u1ef1a v\u00e0o \u0111\u1ecbnh ngh\u0129a m\u1edf r\u1ed9ng c\u1ee7a ph\u1ea3n \u1ee9ng n\u00e0y. Gi\u1ea3 s\u1eed, trong qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; ph\u1ea3n \u1ee9ng kh\u1eed, l\u00e0m gi\u1ea3m electron th\u00e0nh oxy h\u00f3a, ch\u00fang ta c\u00f3 th\u1ec3 c\u00e2n b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng electron. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc: t\u1ed5ng s\u1ed1 electron do ch\u1ea5t kh\u1eed ph\u1ea3i b\u1eb1ng t\u1ed5ng s\u1ed1 electron m\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/phan-ung-oxi-hoa-khu-2.jpg\" alt=\"H\u01b0\u1edbng d\u1eabn th\u1ef1c hi\u1ec7n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a PTHH c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed, h\u00e3y xem x\u00e9t 4 b\u01b0\u1edbc sau \u0111\u00e2y ngay l\u1eadp t\u1ee9c:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 trong ph\u1ea3n \u1ee9ng t\u00ecm ch\u1ea5t oxy h\u00f3a v\u00e0 ch\u1ea5t kh\u1eed.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 2: Vi\u1ebft xu\u1ed1ng qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 gi\u1ea3m quy tr\u00ecnh v\u00e0 sau \u0111\u00f3 c\u00e2n b\u1eb1ng t\u1eebng quy tr\u00ecnh.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 3: T\u00ecm h\u1ec7 s\u1ed1 th\u00edch h\u1ee3p cho c\u00e1c ch\u1ea5t oxy h\u00f3a v\u00e0 ch\u1ea5t kh\u1eed \u0111\u1ec3 t\u1ed5ng s\u1ed1 electron do ch\u1ea5t kh\u1eed b\u1eb1ng t\u1ed5ng s\u1ed1 electron m\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 4: \u0110\u1eb7t c\u00e1c h\u1ec7 s\u1ed1 c\u1ee7a c\u00e1c ch\u1ea5t oxy h\u00f3a v\u00e0 ch\u1ea5t kh\u1eed trong s\u01a1 \u0111\u1ed3 ph\u1ea3n \u1ee9ng, t\u1eeb \u0111\u00f3 ch\u00fang ta s\u1ebd t\u00ednh to\u00e1n h\u1ec7 s\u1ed1 c\u1ee7a c\u00e1c ch\u1ea5t kh\u00e1c c\u00f3 trong ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc. Ti\u1ebfp theo, ki\u1ec3m tra s\u1ed1 nguy\u00ean t\u1eed c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 \u0111\u1ec3 ho\u00e0n th\u00e0nh b\u01b0\u1edbc ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc.  <\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5: T\u1ea1o ph\u01b0\u01a1ng tr\u00ecnh cho ph\u1ea3n \u1ee9ng oxit oxit s\u1eaft (III) oxit (Fe2O3) v\u00e0 hydro (H2) t\u1ea1o ra s\u1eaft (Fe) v\u00e0 n\u01b0\u1edbc (H2O).<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng oxy h\u00f3a c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed tr\u01b0\u1edbc ph\u1ea3n \u1ee9ng c\u1ee7a Fe l\u00e0 +3, h l\u00e0 0; Sau ph\u1ea3n \u1ee9ng FE l\u00e0 0 v\u00e0 H l\u00e0 +1.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 2: Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh cho qu\u00e1 tr\u00ecnh kh\u1eed v\u00e0 oxy h\u00f3a<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Qu\u00e1 tr\u00ecnh gi\u1ea3m:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Fe2O3 + 2.3e -&gt; 2fe<\/p>\n<p dir=\"ltr\">Qu\u00e1 tr\u00ecnh oxy h\u00f3a:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">H2 -&gt; H2O + 2.1E<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 3: T\u00ecm y\u1ebfu t\u1ed1 th\u00edch h\u1ee3p<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"text-align: center\">1 Fe2O3 + 2.3e -&gt; 2fe<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">3 H2 -&gt; H2O + 2.1E<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 4: Ho\u00e0n th\u00e0nh ph\u01b0\u01a1ng tr\u00ecnh:<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"text-align: center\">Fe2O3 + 3H2 \u2192 2Fe + 3H2O<\/p>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%\">\n<p style=\"text-align: center\">Gi\u00fap con b\u1ea1n h\u1ecdc to\u00e1n k\u1ebft h\u1ee3p v\u1edbi ti\u1ebfng Anh si\u00eau ti\u1ebft ki\u1ec7m ch\u1ec9 tr\u00ean \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc kh\u1ec9. V\u1edbi n\u1ed9i dung gi\u1ea3ng d\u1ea1y v\u1ea1n n\u0103ng \u0111\u1ec3 gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n t\u01b0 duy n\u00e3o b\u1ed9 v\u00e0 ng\u00f4n ng\u1eef to\u00e0n di\u1ec7n ch\u1ec9 v\u1edbi kho\u1ea3ng 2k\/ng\u00e0y.<\/p>\n<\/p>\n<p><img decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thamgiangay.png\" alt=\"\" width=\"185\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tam_quan_trong_%E2%80%93_Tam_quan_trong_cua_phan_ung_oxi_hoa_khu_trong_cuoc_song\"><\/span>T\u1ea7m quan tr\u1ecdng &#8211; T\u1ea7m quan tr\u1ecdng c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed trong cu\u1ed9c s\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn trong t\u1ef1 nhi\u00ean, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng trong s\u1ea3n xu\u1ea5t v\u00e0 cu\u1ed9c s\u1ed1ng. S\u1eed d\u1ee5ng h\u1ee3p l\u00fd c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed \u0111\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 s\u1ea3n ph\u1ea9m c\u0169ng nh\u01b0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ch\u00fang.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/phan-ung-oxi-hoa-khu-3.jpg\" alt=\"\u1ee8ng d\u1ee5ng trong \u0111\u00e0o t\u1ea1o s\u1eaft v\u00e0 th\u00e9p. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed trong cu\u1ed9c s\u1ed1ng l\u00e0:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong ng\u00e0nh: \u00c1p d\u1ee5ng ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed \u0111\u1ec3 x\u00e2y d\u1ef1ng nhi\u1ec1u giai \u0111o\u1ea1n trong d\u00f2ng c\u00f4ng ngh\u1ec7. V\u00ed d\u1ee5, nh\u00f4m, s\u1eaft v\u00e0 th\u00e9p, s\u1ea3n xu\u1ea5t thu\u1ed1c b\u1ea3o v\u1ec7 th\u1ef1c v\u1eadt, ph\u00e2n b\u00f3n, d\u01b0\u1ee3c ph\u1ea9m, axit cloochric &#8230;<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y: H\u1ea7u h\u1ebft c\u00e1c n\u0103ng l\u01b0\u1ee3ng m\u00e0 m\u1ecdi ng\u01b0\u1eddi \u0111ang s\u1eed d\u1ee5ng l\u00e0 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed. V\u00ed d\u1ee5, l\u1eeda c\u1ee7a than, x\u0103ng trong \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t b\u00ean trong, c\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra trong pin, pin &#8230;<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Tr\u00ean th\u1ef1c t\u1ebf, nhi\u1ec1u ph\u1ea3n \u1ee9ng oxy h\u00f3a &#8211; oxi h\u00f3a kh\u1eed di\u1ec5n ra trong qu\u00e1 tr\u00ecnh kim lo\u1ea1i b\u1ecb ph\u00e1 h\u1ee7y trong t\u1ef1 nhi\u00ean. Tuy nhi\u00ean, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u0169ng \u0111\u00e3 t\u00ecm th\u1ea5y nhi\u1ec1u bi\u1ec7n ph\u00e1p \u0111\u1ec3 h\u1ea1n ch\u1ebf c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed kh\u00f4ng c\u00f3 l\u1ee3i.<\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phan_ung_oxi_hoa_khu_va_cac_bai_tap_ap_dung\"><\/span>Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed v\u00e0 c\u00e1c b\u00e0i t\u1eadp \u00e1p d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u00c1p d\u1ee5ng ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed v\u1eeba \u0111\u01b0\u1ee3c h\u1ecdc \u0111\u1ec3 th\u1ef1c h\u00e0nh gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp s\u1ebd gi\u00fap b\u1ea1n th\u00e0nh th\u1ea1o v\u00e0 ghi nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c l\u00e2u h\u01a1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp kh\u1ec9 \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb s\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc l\u1edbp 8 v\u00e0 10 \u0111\u1ec3 \u0111\u1ed9c gi\u1ea3 tham kh\u1ea3o.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/phan-ung-oxi-hoa-khu-4.jpg\" alt=\"Th\u1ef1c h\u00e0nh l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 v\u1ec1 ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_1_Chon_cac_tuyen_bo_chinh_xac_Sach_giao_khoa_Hoa_hoc_8_Nha_xuat_ban_Giao_duc_Viet_Nam\"><\/span>B\u00e0i t\u1eadp 1: Ch\u1ecdn c\u00e1c tuy\u00ean b\u1ed1 ch\u00ednh x\u00e1c (S\u00e1ch gi\u00e1o khoa H\u00f3a h\u1ecdc 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Sao ch\u00e9p trong s\u1ed5 ghi ch\u00e9p c\u00e1c c\u00e2u ch\u00ednh x\u00e1c trong c\u00e1c c\u00e2u sau:<\/p>\n<p dir=\"ltr\">A. oxy cho m\u1ed9t t\u00e1c nh\u00e2n kh\u00e1c l\u00e0 l\u00e0m gi\u1ea3m.<\/p>\n<p dir=\"ltr\">B. Ch\u1ea5t n\u0103ng su\u1ea5t oxy cho c\u00e1c ch\u1ea5t kh\u00e1c l\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/p>\n<p dir=\"ltr\">C. oxy c\u1ee7a c\u00e1c ch\u1ea5t kh\u00e1c l\u00e0 l\u00e0m gi\u1ea3m t\u00e1c nh\u00e2n.<\/p>\n<p dir=\"ltr\">D. qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, bao g\u1ed3m qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/p>\n<p dir=\"ltr\">E. oxy h\u00f3a &#8211; Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, x\u1ea3y ra c\u00f9ng m\u1ed9t l\u00fac, qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 kh\u1eed.<\/p>\n<p dir=\"ltr\"><em>G\u1ee3i \u00fd cho c\u00e2u tr\u1ea3 l\u1eddi<\/em><\/p>\n<p dir=\"ltr\">C\u00e2u l\u1ec7nh ch\u00ednh x\u00e1c l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi: B, C, E.<\/p>\n<p dir=\"ltr\">Tuy\u00ean b\u1ed1 sai: A v\u00e0 D v\u00ec c\u00e2u b\u1ecb hi\u1ec3u l\u1ea7m v\u1ec1 b\u1ea3n ch\u1ea5t c\u1ee7a vi\u1ec7c gi\u1ea3m v\u00e0 c\u00e2u D hi\u1ec3u sai v\u1ec1 qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; gi\u1ea3m (ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc x\u1ea3y ra \u0111\u1ed3ng th\u1eddi oxy h\u00f3a v\u00e0 kh\u1eed, kh\u00f4ng ch\u1ec9 oxy h\u00f3a).<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_2_Tim_phan_ung_oxy_hoa_khu_va_loi_ich_tac_hai_cua_moi_phan_ung\"><\/span>B\u00e0i t\u1eadp 2: T\u00ecm ph\u1ea3n \u1ee9ng oxy h\u00f3a kh\u1eed v\u00e0 l\u1ee3i \u00edch\/ t\u00e1c h\u1ea1i c\u1ee7a m\u1ed7i ph\u1ea3n \u1ee9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Vui l\u00f2ng ch\u1ec9 ra c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc sau \u0111\u00e2y xung quanh ch\u00fang ta, ph\u1ea3n \u1ee9ng n\u00e0o l\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; gi\u1ea3m? L\u1ee3i \u00edch v\u00e0 t\u00e1c h\u1ea1i c\u1ee7a m\u1ed7i ph\u1ea3n \u1ee9ng? (S\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c Vi\u1ec7t Nam).<\/p>\n<p dir=\"ltr\">A. Than \u0111\u1ed1t trong l\u00f2: C + O2 \u2192 CO2.<\/p>\n<p dir=\"ltr\">B. S\u1eed d\u1ee5ng oxit gi\u1ea3m oxit carbon (III) oxit trong luy\u1ec7n kim.<\/p>\n<p dir=\"ltr\">Fe2O3 + 3CO \u2192 2FE + 3CO2.<\/p>\n<p dir=\"ltr\">C. V\u00f4i calcine: Caco3 \u2192 CaO + CO2.<\/p>\n<p dir=\"ltr\">D. Rust s\u1eaft trong kh\u00f4ng kh\u00ed: 4FE + 3O2 \u2192 2FE2O3.<\/p>\n<p dir=\"ltr\"><em>\u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi:<\/em><\/p>\n<p dir=\"ltr\">Qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 a, b v\u00e0 d<\/p>\n<p dir=\"ltr\">Ph\u00e2n t\u00edch l\u1ee3i \u00edch v\u00e0 t\u00e1c h\u1ea1i c\u1ee7a m\u1ed7i ph\u1ea3n \u1ee9ng.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng A: T\u00e1c h\u1ea1i l\u00e0 t\u1ea1o ra CO2 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. L\u1ee3i \u00edch c\u1ee7a ph\u1ea3n \u1ee9ng l\u00e0 t\u1ea1o ra nhi\u1ec7t \u0111\u1ec3 t\u1ea1o ra s\u1ef1 s\u1ed1ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng B: L\u1ee3i \u00edch c\u1ee7a ph\u1ea3n \u1ee9ng l\u00e0 \u0111i\u1ec1u ch\u1ebf s\u1eaft. \u1ea2nh h\u01b0\u1edfng c\u00f3 h\u1ea1i c\u1ee7a ph\u1ea3n \u1ee9ng n\u00e0y l\u00e0 t\u1ea1o ra CO2 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng D: Ph\u1ea3n \u1ee9ng n\u00e0y ch\u1ec9 c\u00f3 h\u1ea1i, \u0111\u00f3 l\u00e0 s\u1eaft g\u1ec9, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng c\u0169ng nh\u01b0 c\u00e1c c\u00f4ng c\u1ee5 l\u00e0m t\u1eeb s\u1eaft.<\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_3_Bai_tap_so_5_trong_sach_giao_khoa_8_Nha_xuat_ban_Giao_duc\"><\/span>B\u00e0i t\u1eadp 3: B\u00e0i t\u1eadp s\u1ed1 5 trong s\u00e1ch gi\u00e1o khoa 8, Nh\u00e0 xu\u1ea5t b\u1ea3n Gi\u00e1o d\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong ph\u00f2ng th\u00ed nghi\u1ec7m, kh\u00ed hydro \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf oxit s\u1eaft (II) v\u00e0 thu \u0111\u01b0\u1ee3c 11,2 g Fe.<\/p>\n<p dir=\"ltr\">1\/ Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng.<\/p>\n<p dir=\"ltr\">2\/ T\u00ednh th\u1ec3 t\u00edch c\u1ee7a s\u1eaft (III) \u0111\u00e3 ph\u1ea3n \u1ee9ng.<\/p>\n<p dir=\"ltr\">3\/ T\u00ednh th\u1ec3 t\u00edch c\u1ee7a kh\u00ed hydro ti\u00eau th\u1ee5 (ti\u00eau chu\u1ea9n).<\/p>\n<p dir=\"ltr\"><em>\u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi:<\/em><\/p>\n<p dir=\"ltr\">1\/ Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng: FE2O3 + 3H2 \u2192 2FE + 3H2O<\/p>\n<p dir=\"ltr\">2\/ T\u00ednh th\u1ec3 t\u00edch c\u1ee7a s\u1eaft (III) \u0111\u00e3 ph\u1ea3n \u1ee9ng oxit:<\/p>\n<p dir=\"ltr\">Gi\u1ea3m 1 mol Fe2O3 cho 2 mol Fe.<\/p>\n<p dir=\"ltr\">x = 0,2\/2 = 0,1 mol.<\/p>\n<p dir=\"ltr\">M = 0,1 x 160 = 16g.<\/p>\n<p dir=\"ltr\">3\/ Gi\u1ea3m 1 mol c\u1ee7a Fe2O3 y\u00eau c\u1ea7u 3 mol H2.<\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, vi\u1ec7c gi\u1ea3m 0,1 mol Fe2O3 \u0111\u00f2i h\u1ecfi 0,3 mol H2.<\/p>\n<p dir=\"ltr\">Kh\u1ed1i l\u01b0\u1ee3ng kh\u00ed Hidro: V = 0,3 x 22,4 = 6,72 l\u00edt.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_4_Tim_phan_ung_oxi_hoa_khu_Bai_tap_1_Hoa_hoc_SGK_10_Nha_xuat_ban_giao_duc\"><\/span>B\u00e0i t\u1eadp 4: T\u00ecm ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed (B\u00e0i t\u1eadp 1, H\u00f3a h\u1ecdc SGK 10, Nh\u00e0 xu\u1ea5t b\u1ea3n gi\u00e1o d\u1ee5c)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">A. 2Hgo -&gt; 2Hg + O2.<\/p>\n<p dir=\"ltr\">B. Caco3 -&gt; CaO + CO2.<\/p>\n<p dir=\"ltr\">C. 2AL (OH) 3 -&gt; AL2O3 + 3H2O.<\/p>\n<p dir=\"ltr\">D. 2Nahco3 -&gt; Na2Co3 + CO2 + H2O.<\/p>\n<p dir=\"ltr\">Ph\u1ea3n \u1ee9ng n\u00e0o l\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed.<\/p>\n<p dir=\"ltr\"><em>  \u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi: <\/em><\/p>\n<p dir=\"ltr\">Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_bai_tap_ve_phan_ung_oxy_hoa_de_hoc_sinh_thuc_hanh\"><\/span>M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 ph\u1ea3n \u1ee9ng oxy h\u00f3a \u0111\u1ec3 h\u1ecdc sinh th\u1ef1c h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ngo\u00e0i c\u00e1c b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa h\u00f3a h\u1ecdc, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp th\u1ef1c h\u00e0nh \u0111\u1ec3 h\u1ecdc sinh th\u1ef1c h\u00e0nh:<\/p>\n<p style=\"margin: 0in;margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 1: \u0110\u1ed1i v\u1edbi ph\u1ea3n \u1ee9ng: Na2SO3 + KMNO4 + H2O \u2192 NA2SO4 + MnO2 + KOH<\/p>\n<p>T\u1ef7 l\u1ec7 c\u1ee7a h\u1ec7 s\u1ed1 gi\u1ea3m t\u00e1c nh\u00e2n v\u00e0 qu\u00e1 tr\u00ecnh oxy h\u00f3a sau khi c\u00e2n b\u1eb1ng l\u00e0:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A. 4: 3 B. 3: 2 C. 3: 4 D. 2: 3<\/p>\n<p style=\"margin: 0in;margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 2 H\u1ec7 s\u1ed1 c\u00e2n b\u1eb1ng t\u01b0\u01a1ng \u1ee9ng c\u1ee7a FESO4 v\u00e0 K2CR2O7:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A. 6; 2 B. 5; 2 C. 6; 1 D. 8; 3<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 3. C\u00e2n b\u1eb1ng ph\u1ea3n \u1ee9ng sau: Fe3O4 + HNO3 \u2192 Fe (NO3) 3 + NO + H2O<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 4. C\u00e2n b\u1eb1ng ph\u1ea3n \u1ee9ng: AS2S3 + HNO3 + H2O \u2192 H3ASO4 + NO + H2SO4<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 5. T\u00ednh t\u1ed5ng h\u1ec7 s\u1ed1 c\u00e2n b\u1eb1ng trong ph\u1ea3n \u1ee9ng sau:<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">A. 15 B. 14 C. 18 D. 21<\/p>\n<p style=\"margin: 0in;margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 6.<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">CH3CH2OH + K2CR2O7 + H2SO4 \u2192 CH3COOH + CR2 (SO4) 3 + K2SO4 + H2O<\/p>\n<p style=\"margin: 0in;margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 7. X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 c\u00e2n b\u1eb1ng c\u1ee7a KMNO4 trong ph\u1ea3n \u1ee9ng sau:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">SO2 + KMNO4 + H2O \u2192 K2SO4 + &#8230;<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A. 2 B. 5 C. 7 D. 10<\/p>\n<p style=\"margin: 0in;margin-bottom: .0001pt;text-align: justify;line-height: 150%;background: white\">C\u00e2u 8. C\u00e2n b\u1eb1ng qu\u00e1 tr\u00ecnh oxy h\u00f3a &#8211; Ph\u1ea3n \u1ee9ng gi\u1ea3m b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng E:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A) Fe2O3 + Al \u2192 Al2O3 + Fenom<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">B) FENOM + HNO3 \u2192 Fe (NO3) 3 + NO + H2O<\/p>\n<p>C\u00e2u 9: H\u00f2a tan 7,8g h\u1ed7n h\u1ee3p b\u1ed9t Al v\u00e0 Mg trong dung d\u1ecbch HCl d\u01b0 th\u1eeba. Sau khi ph\u1ea3n \u1ee9ng, th\u1ec3 t\u00edch dung d\u1ecbch axit t\u0103ng 7,0g. Th\u1ec3 t\u00edch nh\u00f4m v\u00e0 magi\u00ea trong h\u1ed7n h\u1ee3p \u0111\u1ea7u ti\u00ean l\u00e0:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A. 2,7g v\u00e0 1.2g B. 5,4g v\u00e0 2,4g C. 5,8g v\u00e0 3,6g D. 1,2g v\u00e0 2,4g<\/p>\n<p>C\u00e2u 10: Cho 15,8 gram KMNO4 v\u1edbi dung d\u1ecbch HCl \u0111\u1eadm \u0111\u1eb7c. Th\u1ec3 t\u00edch kh\u00ed clo thu \u0111\u01b0\u1ee3c trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n l\u00e0:<\/p>\n<p style=\"margin: 0in 0in 0.0001pt;text-align: justify;line-height: 150%;background: white\">A. 5,6 l\u00edt. B. 0,56 l\u00edt. C. 0,28 l\u00edt. D. 2,8 l\u00edt.<\/p>\n<\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 th\u00f4ng tin chung c\u1ee7a kh\u1ec9 v\u1ec1 c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed theo c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc 8 v\u00e0 10. \u0110\u1eebng qu\u00ean \u0111\u1ecdc trang web Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef m\u1ed7i ng\u00e0y \u0111\u1ec3 t\u00ecm ra ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n th\u00fa v\u1ecb h\u01a1n xung quanh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng!<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed l\u00e0 g\u00ec? T\u00e1c nh\u00e2n kh\u1eed, ch\u1ea5t oxy h\u00f3a l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c ph\u1ea3n \u1ee9ng oxi h\u00f3a kh\u1eed v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang? B\u00e0i vi\u1ebft sau \u0111\u00e2y c\u1ee7a kh\u1ec9 s\u1ebd gi\u00fap b\u1ea1n tr\u1ea3 l\u1eddi t\u1ea5t c\u1ea3 c\u00e1c c\u00e2u h\u1ecfi&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-26186","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/26186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=26186"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/26186\/revisions"}],"predecessor-version":[{"id":26860,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/26186\/revisions\/26860"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=26186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=26186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=26186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}