B\u00e0i 1 (trang 104 SGK H\u00f3a 12):\u00a0Vi\u1ebft b\u1ea3n t\u01b0\u1eddng tr\u00ecnh<\/strong><\/p>\n 1. Th\u00ed nghi\u1ec7m 1: D\u00e3y \u0111i\u1ec7n h\u00f3a c\u1ee7a kim lo\u1ea1i.<\/strong><\/p>\n B\u1ecdt kh\u00ed tho\u00e1t ra \u1edf \u1ed1ng nghi\u1ec7m khi th\u1ea3 Al nhanh h\u01a1n so v\u1edbi \u1ed1ng nghi\u1ec7m khi th\u1ea3 Fe. \u1ed0ng nghi\u1ec7m khi th\u1ea3 Cu kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng g\u00ec.<\/p>\n K\u1ebft lu\u1eadn: T\u00ednh kim lo\u1ea1i Al > Fe > Cu.<\/p>\n 2. Th\u00ed nghi\u1ec7m 2: \u0110i\u1ec1u ch\u1ebf kim lo\u1ea1i b\u1eb1ng c\u00e1ch d\u00f9ng kim lo\u1ea1i m\u1ea1nh kh\u1eed ion c\u1ee7a kim lo\u1ea1i y\u1ebfu trong dung d\u1ecbch.<\/strong><\/p>\n \u0110\u00e1nh s\u1ea1ch g\u1ec9 m\u1ed9t chi\u1ebfc \u0111inh s\u1eaft r\u1ed3i th\u1ea3 v\u00e0o dung d\u1ecbch CuSO4<\/sub>. Sau 10 ph\u00fat tr\u00ean \u0111\u1ec9nh Fe xu\u1ea5t hi\u1ec7n m\u1ed9t l\u1edbp kim lo\u1ea1i m\u00e0u \u0111\u1ecf (Cu) dung d\u1ecbch nh\u1ea1t d\u1ea7n m\u00e0u xanh ( Cu2+<\/sup>\u00a0ph\u1ea3n \u1ee9ng v\u00e0 n\u1ed3ng \u0111\u1ed9 gi\u1ea3m).<\/p>\n 3. Th\u00ed nghi\u1ec7m 3: \u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a h\u1ecdc.<\/strong><\/p>\n L\u00fac \u0111\u1ea7u \u1edf \u1ed1ng 1 v\u00e0 \u1ed1ng 2 b\u1ecdt kh\u00ed tho\u00e1t ra \u0111\u1ec1u nhau.<\/p>\n \u1ede \u1ed1ng 2 sau khi th\u00eam CuSO4<\/sub>\u00a0th\u1ea5y \u1edf vi\u00ean k\u1ebdm xu\u1ea5t hi\u1ec7n m\u00e0u \u0111\u1ecf, \u0111\u1ed3ng th\u1eddi b\u1ecdt kh\u00ed tho\u00e1t ra nhanh h\u01a1n \u1ed1ng 1 (do Zn + Cu2+<\/sup>\u00a0\u2192 Zn2+<\/sup>\u00a0+ Cu b\u00e1m l\u00ean thanh Zn th\u00e0nh 2 \u0111i\u1ec7n c\u1ef1c trong dung d\u1ecbch H2<\/sub>SO4<\/sub>\u00a0=> pin > \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a h\u1ecdc)<\/p>\n","protected":false},"excerpt":{"rendered":" B\u00e0i 1 (trang 104 SGK H\u00f3a 12):\u00a0Vi\u1ebft b\u1ea3n t\u01b0\u1eddng tr\u00ecnh 1. Th\u00ed nghi\u1ec7m 1: D\u00e3y \u0111i\u1ec7n h\u00f3a c\u1ee7a kim lo\u1ea1i. B\u1ecdt kh\u00ed tho\u00e1t ra \u1edf \u1ed1ng nghi\u1ec7m khi th\u1ea3 Al nhanh h\u01a1n so v\u1edbi \u1ed1ng nghi\u1ec7m khi th\u1ea3 Fe. \u1ed0ng nghi\u1ec7m khi th\u1ea3 Cu kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng g\u00ec. K\u1ebft lu\u1eadn: T\u00ednh kim lo\u1ea1i Al […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1305],"tags":[1419,1420],"yoast_head":"\n