{"id":756,"date":"2021-10-07T23:25:05","date_gmt":"2021-10-07T23:25:05","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=756"},"modified":"2021-10-14T22:07:33","modified_gmt":"2021-10-14T15:07:33","slug":"tinh-chat-hoa-hoc-cua-bazo-tan-nhung-luu-y-quan-trong","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tinh-chat-hoa-hoc-cua-bazo-tan-nhung-luu-y-quan-trong\/","title":{"rendered":"T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a Baz\u01a1 tan \u2013 Nh\u1eefng l\u01b0u \u00fd quan tr\u1ecdng"},"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\">Khi ch\u00fang ta c\u1ea7m l\u1ecd ch\u1ee9a bazo s\u1ebd th\u1ea5y c\u00f3 m\u00f9i v\u00e0 c\u1ea3m gi\u00e1c nh\u1eddn nh\u01b0 x\u00e0 ph\u00f2ng. \u0110\u00d3 l\u00e0 m\u1ed9t trong nh\u1eefng t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a baz\u01a1. C\u00f2n \u0111\u1ed1i v\u1edbi t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 th\u00ec sao? S\u1ebd c\u00f3 2 lo\u1ea1i baz\u01a1 l\u00e0 tan v\u00e0 kh\u00f4ng tan. Tuy nhi\u00ean, x\u00e9t v\u1ec1 t\u00ednh ch\u1ea5t th\u00ec ch\u00fang c\u0169ng c\u00f3 nh\u1eefng \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi nhau. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan v\u00e0 kh\u00f4ng tan trong b\u00e0i vi\u1ebft sau \u0111\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1i qu\u00e1t v\u1ec1 baz\u01a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ecbnh ngh\u0129a baz\u01a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Baz\u01a1 l\u00e0 h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc m\u00e0 trong \u0111\u00f3 ph\u00e2n t\u1eed c\u1ee7a ch\u00fang s\u1ebd g\u1ed3m c\u00f3 m\u1ed9t nguy\u00ean t\u1eed kim lo\u1ea1i li\u00ean k\u1ebft v\u1edbi m\u1ed9t hay nhi\u1ec1u nh\u00f3m hidroxit. C\u00f4ng th\u1ee9c chung c\u1ee7a baz\u01a1 d\u1ea1ng B(OH)x. Trong \u0111\u00f3 x l\u00e0 h\u00f3a tr\u1ecb c\u1ee7a kim lo\u1ea1i khi li\u00ean k\u1ebft v\u1edbi hidroxit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch \u0111\u1ecdc t\u00ean baz\u01a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta c\u00f3 c\u00e1ch \u0111\u1ecdc t\u00ean c\u1ee7a c\u00e1c lo\u1ea1i baz\u01a1 nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ean baz\u01a1 = t\u00ean kim lo\u1ea1i (\u0111\u01b0\u1ee3c th\u00eam h\u00f3a tr\u1ecb n\u1ebfu kim lo\u1ea1i c\u00f3 nhi\u1ec1u h\u00f3a tr\u1ecb) + hi\u0111roxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Al(OH)3 : nh\u00f4m hidroxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fe(OH)2: S\u1eaft (II) hidroxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fe(OH)3: S\u1eaft (III) hidroxit<\/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\">Ph\u00e2n lo\u1ea1i baz\u01a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta s\u1ebd ph\u00e2n lo\u1ea1i baz\u01a1 d\u1ef1a v\u00e0o t\u00ednh tan c\u1ee7a ch\u00fang. S\u1ebd g\u1ed3m c\u00f3 2 lo\u1ea1i l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Baz\u01a1 tan trong n\u01b0\u1edbc t\u1ea1o dung d\u1ecbch ki\u1ec1m nh\u01b0: NaOH, KOH, LiOH, Ca(OH)2, Ba(OH)2,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Baz\u01a1 kh\u00f4ng tan trong n\u01b0\u1edbc: Cu(OH)2, Mg(OH)2, Fe(OH)3,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc baz\u01a1 ch\u00fang ta \u0111\u00e3 \u0111\u01b0\u1ee3c h\u1ecdc trong ph\u1ea7n ki\u1ebfn th\u1ee9c c\u1ee7a l\u1edbp 9. Theo \u0111\u00f3 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 h\u00f3a 9 s\u1ebd g\u1ed3m c\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00f3a 9 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 \u2013 l\u00e0m \u0111\u1ed5i m\u00e0u qu\u1ef3 t\u00edm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c dung d\u1ecbch baz\u01a1 (ki\u1ec1m) s\u1ebd khi\u1ebfn cho qu\u1ef3 t\u00edm chuy\u1ec3n th\u00e0nh m\u00e0u xanh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi dung d\u1ecbch phenolphtalein kh\u00f4ng m\u00e0u th\u00ec s\u1ebd \u0111\u1ed5i th\u00e0nh m\u00e0u h\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi axit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 ti\u1ebfp theo \u0111\u00f3 l\u00e0 t\u00e1c d\u1ee5ng v\u1edbi axit. \u0110\u00e2y l\u00e0 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan v\u00e0 kh\u00f4ng tan. Sau khi t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch axit s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh g\u1ed3m mu\u1ed1i v\u00e0 n\u01b0\u1edbc. \u0110\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng trung h\u00f2a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2NaOH + SO2 \u2192 Na2SO3 + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3Ca(OH)2 + P2O5 \u2192 Ca3(PO4)2\u2193 + 3H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi oxit axit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dung d\u1ecbch baz\u01a1 khi t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch axit s\u1ebd t\u1ea1o th\u00e0nh s\u1ea3n ph\u1ea9m mu\u1ed1i v\u00e0 n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">KOH + HCl \u2192 KCl + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu(OH)2 + 2HNO3 \u2192 Cu(NO3)2 + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 v\u00e0 mu\u1ed1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dung d\u1ecbch baz\u01a1 sau khi t\u00e1c d\u1ee5ng v\u1edbi m\u1ed9t s\u1ed1 dung d\u1ecbch mu\u1ed1i s\u1ebd t\u1ea1o th\u00e0nh mu\u1ed1i m\u1edbi v\u00e0 baz\u01a1 m\u1edbi. Trong \u0111\u00f3, \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng x\u1ea3y ra l\u00e0 s\u1ea3n ph\u1ea9m t\u1ea1o th\u00e0nh ph\u1ea3i c\u00f3 m\u1ed9t ch\u1ea5t kh\u00f4ng tan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2NaOH + CuSO4 \u2192 Na2SO4 + Cu(OH)2\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Baz\u01a1 kh\u00f4ng tan b\u1ecb nhi\u1ec7t ph\u00e2n h\u1ee7y<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan kh\u00f4ng c\u00f3 m\u00e0 ch\u1ec9 x\u1ea3y ra \u1edf baz\u01a1 kh\u00f4ng tan \u0111\u00f3 l\u00e0 khi b\u1ecb nhi\u1ec7t ph\u00e2n h\u1ee7y s\u1ebd t\u1ea1o th\u00e0nh oxit v\u00e0 n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu(OH)2 \u2192 CuO + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2Fe(OH)3\u2192Fe2O3 + 3H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng qu\u1ef3 t\u00edm \u0111\u1ec3 ph\u00e2n bi\u1ec7t baz\u01a1<\/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\">B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00e2y s\u1ebd l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan v\u00e0 kh\u00f4ng tan \u0111\u1ec3 b\u1ea1n l\u00e0m quen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 1: D\u00f9ng dung d\u1ecbch Ca(OH)2, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c 3 lo\u1ea1i ph\u00e2n b\u00f3n: KCl, NH4NO3, Ca(H2PO4)2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cho 3 lo\u1ea1i ph\u00e2n b\u00f3n v\u00e0o 3 \u1ed1ng nghi\u1ec7m ch\u1ee9a dung d\u1ecbch Ca(OH)2 \u0111\u01b0\u1ee3c \u0111un n\u00f3ng nh\u1eb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ed0ng nghi\u1ec7m c\u00f3 kh\u00ed m\u00f9i khai bay ra l\u00e0 NH4NO3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ca(OH)2 + 2NH4NO3\u2192Ca(NO3)2 + 2NH3 +H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ed0ng nghi\u1ec7m c\u00f3 k\u1ebft t\u1ee7a tr\u1eafng l\u00e0 Ca(H2PO4)2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ca(OH)2 + Ca(H2PO4)2\u2192Ca3(PO4)3 + 4H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ed0ng kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng g\u00ec l\u00e0 KCl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 2: C\u00f3 nh\u1eefng baz\u01a1 sau: Mg(OH)2, KOH, Ba(OH)2. H\u00e3y cho bi\u1ebft nh\u1eefng baz\u01a1 n\u00e0o<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a) T\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi v\u1edbi dung d\u1ecbch HCl. b) B\u1ecb nhi\u1ec7t ph\u00e2n h\u1ee7y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) T\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c CO2. d) \u0110\u1ed5i m\u00e0u qu\u1ef3 t\u00edm. th\u00e0nh xanh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a)T\u1ea5t c\u1ea3 c\u00e1c baz\u01a1 \u0111\u1ec1u t\u00e1c d\u1ee5ng v\u1edbi axit HCl:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mg(OH)2 + 2HCl \u2192 MgCl2 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">KOH + HCl \u2192 KaCl + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ba(OH)2 + 2HCl \u2192 BaCl2 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) Ch\u1ec9 c\u00f3 Mg(OH)2 l\u00e0 baz\u01a1 kh\u00f4ng tan n\u00ean b\u1ecb nhi\u1ec7t ph\u00e2n h\u1ee7y:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mg(OH)2 \u2192 MgO + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) Nh\u1eefng baz\u01a1 t\u00e1c d\u1ee5ng v\u1edbi CO2 l\u00e0 KOH v\u00e0 Ba(OH)2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">KOH + CO2 \u2192 K2CO3 + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ba(OH)2 + CO2 \u2192 BaCO3 + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d) Nh\u1eefng baz\u01a1 \u0111\u1ed5i m\u00e0u qu\u1ef3 t\u00edm th\u00e0nh m\u00e0u xanh l\u00e0 KOH v\u00e0 Ba(OH)2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 3: Ho\u00e0n th\u00e0nh c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a)..\u2026. \u2192 Fe2O3 +3H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) H2SO4 +\u2026\u2026 \u2192 MgSO4 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) NaOH +\u2026\u2026 \u2192NaCl + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d) \u2026\u2026 + CO2 \u2192Na2CO3 +H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">e) CuSO4 + \u2026\u2026 \u2192Cu(OH)2 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a)Fe(OH)3\u2192Fe2O3 +3H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) H2SO4 + Mg(OH)2 \u2192 MgSO4 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) NaOH +HCl \u2192 NaCl + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d) 2NaOH + CO2 \u2192 Na2CO3 +H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">e) CuSO4 + 2KOH \u2192 Cu(OH)2 + 2H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 4: Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a n\u01b0\u1edbc v\u1edbi:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u hu\u1ef3nh trioxit b. Cacbon \u0111ioxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110iphotpho pentaoxit d. Canxi oxit e. Natri oxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SO3 + H2O \u2192 H2SO4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CO2 + H2O \u2192 H2CO3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P2O5 + 3H2O \u2192 2H3PO4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CaO + H2O \u2192 Ca(OH)2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na2O + H2O \u2192 2NaOH<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 5: : Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc c\u1ee7a KOH t\u00e1c d\u1ee5ng v\u1edbi:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a. Silic oxit b. L\u01b0u hu\u1ef3nh trioxit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c. Cacbon \u0111ioxit d. \u0110iphotpho pentaoxid<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a. 2KOH + SiO2 \u2192 K2SiO3 + H2O b. 2KOH + SO3 \u2192 K2SO4 + H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b. 2KOH + CO2 \u2192 K2CO3 + H2O d. 6KOH + P2O5 \u2192 2K3PO4 + 3H2O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 6: H\u00e3y nh\u1eadn bi\u1ebft c\u00e1c dung d\u1ecbch sau: H2SO4, NaOH, HCl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9ng qu\u1ef3 t\u00edm:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NaOH l\u00e0m qu\u1ef3 chuy\u1ec3n m\u00e0u xanh<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H2SO4, HCl l\u00e0m qu\u1ef3 chuy\u1ec3n m\u00e0u \u0111\u1ecf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9ng BaCl2 nh\u1eadn 2 dung d\u1ecbch axit:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 k\u1ebft t\u1ee7a tr\u1eafng l\u00e0 H2SO4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H2SO4 + BaCl2 \u2192 BaSO4 + 2HCl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng g\u00ec l\u00e0 HCl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Canxi Hidroxit l\u00e0 m\u1ed9t lo\u1ea1i baz\u01a1 quen thu\u1ed9c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n \u0111\u00e3 n\u1eafm \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 tan n\u00f3i ri\u00eang v\u00e0 baz\u01a1 n\u00f3i chung ch\u01b0a? Ghi nh\u1edb \u0111\u1ec3 h\u1ecdc m\u00f4n h\u00f3a t\u1ed1t h\u01a1n nh\u00e9. Ngoa\u0300i bazo, ho\u0301a ho\u0323c co\u0300n r\u00e2\u0301t nhi\u00ea\u0300u ch\u00e2\u0301t kha\u0301c. \u0110i\u00ea\u0300u ba\u0323n c\u00e2\u0300n la\u0300m la\u0300 ha\u0303y ti\u0300m hi\u00ea\u0309u, th\u01b0\u01a1\u0300ng xuy\u00ean la\u0300m ca\u0301c da\u0323ng ba\u0300i t\u00e2\u0323p li\u00ean quan \u0111\u00ea\u0309 co\u0301 th\u00ea\u0309 gia\u0309i mo\u0323i ba\u0300i t\u00e2\u0323p theo ca\u0301ch chi\u0301nh xa\u0301c nh\u00e2\u0301t va\u0300 nhanh nh\u00e2\u0301t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00f3a 9 : Ph\u00e2n b\u00f3n h\u00f3a h\u1ecdc \u2013 L\u00fd thuy\u1ebft v\u00e0 l\u01b0u \u00fd khi h\u1ecdc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc l\u00e0 g\u00ec? C\u00f3 m\u1ea5y lo\u1ea1i ph\u1ea3n \u1ee9ng h\u00f3<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Khi ch\u00fang ta c\u1ea7m l\u1ecd ch\u1ee9a bazo s\u1ebd th\u1ea5y c\u00f3 m\u00f9i v\u00e0 c\u1ea3m gi\u00e1c nh\u1eddn nh\u01b0 x\u00e0 ph\u00f2ng. \u0110\u00d3 l\u00e0 m\u1ed9t trong nh\u1eefng t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a baz\u01a1. C\u00f2n \u0111\u1ed1i v\u1edbi t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a baz\u01a1 th\u00ec sao? S\u1ebd c\u00f3 2 lo\u1ea1i baz\u01a1 l\u00e0 tan v\u00e0 kh\u00f4ng [&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],"tags":[],"class_list":["post-756","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/756","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=756"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/756\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}