{"id":782,"date":"2021-10-07T23:28:04","date_gmt":"2021-10-07T23:28:04","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=782"},"modified":"2021-10-14T22:11:40","modified_gmt":"2021-10-14T15:11:40","slug":"day-hoat-dong-hoa-hoc-cua-kim-loai-day-du-lop-9-toppy","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/day-hoat-dong-hoa-hoc-cua-kim-loai-day-du-lop-9-toppy\/","title":{"rendered":"D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i \u0111\u1ea7y \u0111\u1ee7 l\u1edbp 9"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i c\u00f3 quan tr\u1ecdng kh\u00f4ng? Ch\u00fang c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng ra sao? Ch\u00fang \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo tr\u00ecnh t\u1ef1 n\u00e0o? C\u00f3 c\u00e1ch n\u00e0o nh\u1edb nhanh v\u00e0 l\u00e2u d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i l\u1edbp 9 kh\u00f4ng? B\u00e0i vi\u1ebft sau c\u1ee7a Vietlearn s\u1ebd cho b\u1ea1n c\u00e2u tr\u1ea3 l\u1eddi nh\u00e9!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i l\u1edbp 9 l\u00e0 d\u00e3y c\u00e1c kim lo\u1ea1i li\u00ean ti\u1ebfp \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo tr\u00ecnh t\u1ef1 gi\u1ea3m d\u1ea7n d\u1ef1a theo m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang. D\u00e3y ho\u1ea1t \u0111\u1ed9ng kim lo\u1ea1i t\u1ea1o th\u00e0nh b\u1edfi ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c nghi\u1ec7m h\u00f3a h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t d\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t \u0111\u1ed9ng n\u00e0y gi\u00fap ta d\u1ec5 d\u00e0ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c kim lo\u1ea1i \u0111\u00f3 t\u00e1c d\u1ee5ng v\u1edbi c\u00e1c ch\u1ea5t kh\u00e1c s\u1ebd t\u1ea1o ra k\u1ebft qu\u1ea3 g\u00ec. Tuy nhi\u00ean, ta th\u1ea5y r\u1eb1ng nh\u1eefng kim lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c c\u00e1c nh\u00f3m nh\u01b0 sau: Kim lo\u1ea1i y\u1ebfu, kim lo\u1ea1i m\u1ea1nh nh\u1ea5t, kim lo\u1ea1i trung b\u00ecnh v\u00e0 kim lo\u1ea1i m\u1ea1nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i \u0111\u1ea7y \u0111\u1ee7 chu\u1ea9n qu\u1ed1c t\u1ebf:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i m\u1ea1nh nh\u01b0 Kali (K), Canxi (Ca), Natri (Na) tan trong n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i trung b\u00ecnh: Nh\u00f4m (Al), S\u1eaft (Fe), Thi\u1ebfc (Sn), Magie (Mg), K\u1ebdm (K), Niken (Ni), Ch\u00ec (Pb) kh\u00f4ng tan trong n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i y\u1ebfu: Th\u1ee7y ng\u00e2n (Hg), B\u1ea1ch kim (Pt), \u0110\u1ed3ng (Cu), B\u1ea1c (Ag), V\u00e0ng (Au) kh\u00f4ng tan trong n\u01b0\u1edbc.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u0110\u0103ng ky\u0301 ho\u0323c th\u01b0\u0309 mi\u00ea\u0303n phi\u0301 m\u00f4n Ho\u0301a ho\u0323c t\u01b0\u0300 l\u01a1\u0301p 8 \u0111\u00ea\u0301n l\u01a1\u0301p 12<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dd ngh\u0129a d\u00e3y ho\u1ea1t \u0111\u1ed9ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0 \u0111\u00e3 gi\u1edbi thi\u1ec7u \u1edf tr\u00ean, d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng v\u00e0 s\u1eafp x\u1ebfp theo tr\u00ecnh t\u1ef1 gi\u1ea3m d\u1ea7n d\u1ef1a v\u00e0o m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng (t\u1ee9c kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi ch\u1ea5t kh\u00e1c). V\u00e0 ch\u00fang \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1edfi ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c nghi\u1ec7m h\u00f3a h\u1ecdc. T\u1eeb \u0111\u00f3 ta c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 \u00fd ngh\u0129a ch\u00ednh nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dd ngh\u0129a \u0111\u1eb7c tr\u01b0ng nh\u1ea5t c\u1ee7a d\u00e3y ho\u1ea1t \u0111\u1ed9ng n\u00e0y l\u00e0 ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc. 5 kim lo\u1ea1i m\u1ea1nh nh\u1ea5t \u0111\u1ee9ng \u0111\u1ea7u d\u00e3y d\u1ec5 d\u00e0ng ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc trong \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng. Kim lo\u1ea1i t\u1eeb Magie (Mg) tr\u1edf v\u1ec1 sau kh\u00f3 ph\u1ea3n \u1ee9ng h\u01a1n, nh\u01b0 S\u1eaft (Fe) t\u00e1c d\u1ee5ng v\u1edbi n\u01b0\u1edbc \u0111\u01b0\u1ee3c nh\u01b0ng ph\u1ea3i \u1edf \u0111i\u1ec1u ki\u1ec7n l\u00e0 nhi\u1ec7t \u0111\u1ed9 cao. Ho\u1eb7c kim lo\u1ea1i nh\u01b0 V\u00e0ng (Au), Ch\u00ec (Pb), Thi\u1ebfc (Sn),\u2026 kh\u00f4ng c\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u01a1 \u0111\u1ed3 h\u00f3a m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u1ea1o th\u00e0nh baz\u01a1 t\u01b0\u01a1ng \u1ee9ng v\u00e0 t\u1ea1o ra kh\u00ed Hidro (H2).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc Kim lo\u1ea1i ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>B\u00e2\u0323t mi\u0301 ca\u0301ch \u0111a\u0301nh bay n\u00f4\u0303i s\u01a1\u0323 m\u00f4n Ho\u0301a ho\u0323c \u2013 Vietlearn<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi Oxi<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kim lo\u1ea1i m\u1ea1nh ph\u1ea3n \u1ee9ng d\u1ec5 d\u00e0ng v\u1edbi oxi trong \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng. Do v\u1eady, c\u00e1c kim lo\u1ea1i n\u00e0y \u1edf ngo\u00e0i kh\u00f4ng kh\u00ed \u1edf d\u1ea1ng h\u1ee3p ch\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 kim lo\u1ea1i ch\u1ec9 ph\u1ea3n \u1ee9ng v\u1edbi oxi khi c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 \u0111\u1ed3ng v\u00e0 c\u00e1c kim lo\u1ea1i trung b\u00ecnh. M\u1ed9t v\u00e0i kim lo\u1ea1i \u1edf ngo\u00e0i kh\u00f4ng kh\u00ed ph\u1ea3n \u1ee9ng t\u1ea1o th\u00e0nh h\u1ee3p ch\u1ea5t oxit v\u00e0 b\u1ecb m\u1ea5t d\u1ea7n nh\u1eefng t\u00ednh ch\u1ea5t ban \u0111\u1ea7u. V\u00ed d\u1ee5 nh\u01b0 kim lo\u1ea1i s\u1eaft \u1edf m\u00f4i tr\u01b0\u1eddng kh\u00f4ng kh\u00ed l\u00e2u s\u1ebd t\u1ea1o ra Fe2O3 l\u00e0m s\u1eaft tr\u1edf n\u00ean gi\u00f2n v\u00e0 d\u1ec5 g\u00e3y, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 g\u1ec9 s\u00e9t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kim lo\u1ea1i y\u1ebfu c\u00f2n l\u1ea1i ph\u1ea3n \u1ee9ng v\u1edbi oxi r\u1ea5t kh\u00f3 nh\u01b0 B\u1ea1c (Ag), B\u1ea1ch kim (Pt), V\u00e0ng (Au),\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3Fe + 2O2 \u2192 Fe3O4 (trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4Al + 3O2 \u2192 2Al2O3 (trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea3n \u1ee9ng v\u1edbi dung d\u1ecbch axit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kim lo\u1ea1i trung b\u00ecnh v\u00e0 kim lo\u1ea1i m\u1ea1nh ph\u1ea3n \u1ee9ng v\u1edbi dung d\u1ecbch axit t\u1ea1o th\u00e0nh mu\u1ed1i v\u00e0 kh\u00ed hidro (H2). Do v\u1eady, trong th\u00ed nghi\u1ec7m m\u1ed9t s\u1ed1 kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf ra kh\u00ed hidro (H2), m\u1ed9t s\u1ed1 kim lo\u1ea1i \u0111\u00f3 l\u00e0 S\u1eaft (Fe), K\u1ebdm (Zn), Nh\u00f4m (Al).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zn + 2HCl \u2192 nCl2 +H2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kim lo\u1ea1i y\u1ebfu kh\u00f4ng ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c v\u1edbi axit lo\u00e3ng. B\u00ean c\u1ea1nh \u0111\u00f3, m\u1ed9t v\u00e0i kim lo\u1ea1i c\u00f3 th\u1ec3 t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi axit \u0111\u1eb7c nh\u01b0 \u0110\u1ed3ng (Cu), B\u1ea1c (Ag). Ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi axit H2SO4 (\u0111\u1eb7c v\u00e0 n\u00f3ng) ho\u1eb7c axit HNO3 (\u0111\u1eb7c hay lo\u00e3ng) t\u1ea1o th\u00e0nh dung d\u1ecbch mu\u1ed1i m\u1edbi v\u00e0 kh\u00ed sunfur\u01a1 ho\u1eb7c kh\u00ed NO hay NO2 .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu + 2H2SO4 \u2192 CuSO4 + 2H2O + SO2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i t\u00e1c d\u1ee5ng v\u1edbi mu\u1ed1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u00fd ngh\u0129a \u0111\u1eb7c tr\u01b0ng ti\u1ebfp theo \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i ch\u00ednh l\u00e0 t\u00e1c d\u1ee5ng v\u1edbi mu\u1ed1i. Ph\u1ea3n \u1ee9ng n\u00e0y ch\u1ec9 x\u1ea3y ra khi \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c \u0111i\u1ec1u ki\u1ec7n nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i \u0111\u01a1n ch\u1ea5t b\u1eaft bu\u1ed9c ph\u1ea3i \u0111\u1ee9ng tr\u01b0\u1edbc kim lo\u1ea1i trong h\u1ee3p ch\u1ea5t (\u0111\u01b0\u1ee3c x\u00e9t theo v\u1ecb tr\u00ed trong d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i \u0111\u01a1n ch\u1ea5t b\u1eaft bu\u1ed9c n\u1eb1m sau Mg trong d\u00e3y ho\u1ea1t \u0111\u1ed9ng kim lo\u1ea1i, v\u00ed d\u1ee5 nh\u01b0 Mg, Zn, Al,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5: Ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mg + FeCl2 \u2192 MgCl2 + Fe<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Tham kha\u0309o: \u01af\u0301ng du\u0323ng ho\u0323c tr\u01b0\u0323c tuy\u00ea\u0301n ha\u0300ng \u0111\u00e2\u0300u Vi\u00ea\u0323t Nam \u2013 Vietlearn<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Ho\u1ea1t \u0111\u1ed9ng gi\u1ea3m d\u1ea7n theo chi\u1ec1u t\u1eeb tr\u00e1i sang ph\u1ea3i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ho\u1ea1t \u0111\u1ed9ng kim lo\u1ea1i hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng c\u1ee7a kim lo\u1ea1i. Trong d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i \u0111\u1ea7y \u0111\u1ee7 ph\u1ea3n \u1ee9ng gi\u1ea3m d\u1ea7n t\u1eeb kim lo\u1ea1i Liti (Li) t\u1edbi kim lo\u1ea1i V\u00e0ng (Au). Ph\u1ea3n \u1ee9ng \u0111\u1eb7c tr\u01b0ng nh\u1ea5t l\u00e0 t\u00e1c d\u1ee5ng v\u1edbi n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ho\u1ea1t \u0111\u1ed9ng gi\u1ea3m d\u1ea7n theo chi\u1ec1u t\u1eeb tr\u00e1i sang ph\u1ea3i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5 kim lo\u1ea1i m\u1ea1nh nh\u1ea5t \u0111\u1ee9ng \u0111\u1ea7u d\u00e3y d\u1ec5 d\u00e0ng ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc trong \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng. Kim lo\u1ea1i t\u1eeb Magie (Mg) tr\u1edf v\u1ec1 sau kh\u00f3 ph\u1ea3n \u1ee9ng h\u01a1n, nh\u01b0 S\u1eaft (Fe) t\u00e1c d\u1ee5ng v\u1edbi n\u01b0\u1edbc \u0111\u01b0\u1ee3c nh\u01b0ng ph\u1ea3i \u1edf \u0111i\u1ec1u ki\u1ec7n l\u00e0 nhi\u1ec7t \u0111\u1ed9 cao. Ho\u1eb7c kim lo\u1ea1i nh\u01b0 V\u00e0ng (Au), Ch\u00ec (Pb), Thi\u1ebfc (Sn),\u2026 kh\u00f4ng c\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch nh\u1edb nhanh v\u00e0 l\u00e2u d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch nh\u1edb nhanh v\u00e0 l\u00e2u d\u00e3y ho\u1ea1t \u0111\u1ed9ng kim lo\u1ea1i n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n. L\u1eddi khuy\u00ean d\u00e0nh cho b\u1ea1n l\u00e0 h\u00e3y \u00e1p d\u1ee5ng th\u01a1 v\u0103n v\u00e0o t\u00ean c\u1ee7a c\u00e1c kim lo\u1ea1i n\u00e0y, c\u00e1ch h\u1ecdc n\u00e0y r\u1ea5t hay v\u00e0 d\u1ec5 nh\u1edb. B\u00e0i th\u01a1 sau \u0111\u00e2y \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi b\u00ecnh ch\u1ecdn l\u00e0 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 thu\u1ed9c nh\u1ea5t, m\u1eddi b\u1ea1n tham kh\u1ea3o:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K \u2013 khi; Na \u2013 n\u00e0o; Ba \u2013 ba; Ca \u2013 c\u1ea7n; Mg \u2013 may; Al \u2013 \u00e1o; Zn \u2013 gi\u00e1p; Fe \u2013 s\u1eaft; Ni \u2013 nh\u1edb; Sn \u2013 sang; H \u2013 h\u1ecfi; Cu \u2013 c\u1eeda; Hg \u2013 h\u00e0ng; Ag \u2013 \u00e1; Pt \u2013 phi; Au \u2013 \u00e2u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch nh\u1edb d\u00e3y ho\u1ea1t \u0111\u1ed9ng kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft tr\u00ean \u0111\u00e2y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n \u0111\u1ecdc nh\u1eefng <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n<\/a> v\u1ec1 d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i, ch\u00fang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng v\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 th\u1ebf n\u00e0o. Hy v\u1ecdng b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i s\u1ebd gi\u00fap b\u1ea1n <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> v\u00e0 nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c nhi\u1ec1u ki\u1ebfn th\u1ee9c. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc \u0111\u1eb7c tr\u01b0ng c\u1ee7a Kim lo\u1ea1i la\u0300 gi\u0300 \u2013 H\u00f3a h\u1ecdc l\u1edbp 9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a Kim lo\u1ea1i \u2013 H\u1ecdc t\u1ed1t H\u00f3a 9<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn D\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i c\u00f3 quan tr\u1ecdng kh\u00f4ng? Ch\u00fang c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng ra sao? Ch\u00fang \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo tr\u00ecnh t\u1ef1 n\u00e0o? C\u00f3 c\u00e1ch n\u00e0o nh\u1edb nhanh v\u00e0 l\u00e2u d\u00e3y ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i l\u1edbp 9 kh\u00f4ng? B\u00e0i vi\u1ebft sau [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,4],"tags":[],"class_list":["post-782","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=782"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/782\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}