{"common":{"save":0,"post_id":"8518","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7596","post_id":"8518","mon_id":"1159539","chapter_id":"1159541","question":"<p>CaCO<span class=\"math-tex\">$_{3}$<\/span> + X → CaCl<span class=\"math-tex\">$_{2}$<\/span> + CO<span class=\"math-tex\">$_{2}$<\/span> + H<span class=\"math-tex\">$_{2}$<\/span>O. X là:<\/p>","options":["A. HCl","B. Cl<span class=\"math-tex\">$_{2}$<\/span>","C. H<span class=\"math-tex\">$_{2}$<\/span>","D. H<span class=\"math-tex\">$_{2}$<\/span>O"],"correct":"1","level":"3","hint":"<p>Ph\u1ea3n \u1ee9ng này liên quan \u0111\u1ebfn m\u1ed9t axit m\u1ea1nh có kh\u1ea3 n\u0103ng tác d\u1ee5ng v\u1edbi CaCO<span class=\"math-tex\">$_{3}$<\/span> \u0111\u1ec3 t\u1ea1o ra mu\u1ed1i canxi, khí CO<span class=\"math-tex\">$_{2}$<\/span> và n\u01b0\u1edbc.<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>A. HCl<\/strong><\/p><p>Ph\u1ea3n \u1ee9ng này là m\u1ed9t ph\u1ea3n \u1ee9ng gi\u1eefa CaCO<span class=\"math-tex\">$_{3}$<\/span> và HCl (axit clohi\u0111ric), t\u1ea1o ra CaCl<span class=\"math-tex\">$_{2}$<\/span> (mu\u1ed1i canxi), CO<span class=\"math-tex\">$_{2}$<\/span> (khí cacbonic) và H<span class=\"math-tex\">$_{2}$<\/span>O (n\u01b0\u1edbc).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-02-25 10:41:09","option_type":"math","len":0},{"id":"7597","post_id":"8518","mon_id":"1159539","chapter_id":"1159541","question":"<p>Cho bi\u1ebft t\u1ec9 l\u1ec7 gi\u1eefa các ch\u1ea5t tham gia ph\u1ea3n \u1ee9ng trong ph\u01b0\u01a1ng trình sau: Ba(OH)<span class=\"math-tex\">$_{2}$<\/span> + CuSO<span class=\"math-tex\">$_{4}$<\/span> → Cu(OH)<span class=\"math-tex\">$_{2}$<\/span> + BaSO<span class=\"math-tex\">$_{4}$<\/span><\/p>","options":["A. 1 : 1","B. 1 : 2","C. 2 : 1","D. 2 : 3"],"correct":"1","level":"3","hint":"<p>Hãy xác \u0111\u1ecbnh s\u1ed1 nguyên t\u1eed ho\u1eb7c nhóm ion c\u1ee7a m\u1ed7i ch\u1ea5t trong ph\u01b0\u01a1ng trình ph\u1ea3n \u1ee9ng và so sánh v\u1edbi các ch\u1ea5t khác \u0111\u1ec3 tìm t\u1ec9 l\u1ec7 t\u01b0\u01a1ng \u1ee9ng.<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>A. 1 : 1<\/strong><\/p><p>Ph\u01b0\u01a1ng trình hóa h\u1ecdc Ba(OH)<span class=\"math-tex\">$_{2}$<\/span> + CuSO<span class=\"math-tex\">$_{4}$<\/span> → Cu(OH)<span class=\"math-tex\">$_{2}$<\/span> + BaSO<span class=\"math-tex\">$_{4}$<\/span> có t\u1ec9 l\u1ec7 1:1 gi\u1eefa Ba(OH)<span class=\"math-tex\">$_{2}$<\/span> và CuSO<span class=\"math-tex\">$_{4}$<\/span>, c\u0169ng nh\u01b0 gi\u1eefa Cu(OH)<span class=\"math-tex\">$_{2}$<\/span> và BaSO<span class=\"math-tex\">$_{4}$<\/span>. M\u1ed7i mol Ba(OH)<span class=\"math-tex\">$_{2}$<\/span> ph\u1ea3n \u1ee9ng v\u1edbi m\u1ed9t mol CuSO<span class=\"math-tex\">$_{4}$<\/span> \u0111\u1ec3 t\u1ea1o ra m\u1ed9t mol Cu(OH)<span class=\"math-tex\">$_{2}$<\/span> và m\u1ed9t mol BaSO<span class=\"math-tex\">$_{4}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-02-25 10:50:23","option_type":"txt","len":0},{"id":"7598","post_id":"8518","mon_id":"1159539","chapter_id":"1159541","question":"<p>\u0110i\u1ec1n vào ch\u1ed7 tr\u1ed1ng: "Trong m\u1ed9t ph\u1ea3n \u1ee9ng hóa h\u1ecdc, t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các ch\u1ea5t s\u1ea3n ph\u1ea9m ... t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các ch\u1ea5t ph\u1ea3n \u1ee9ng."<\/p>","options":["A. l\u1edbn h\u01a1n","B. nh\u1ecf h\u01a1n","C. b\u1eb1ng","D. nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng"],"correct":"3","level":"3","hint":"<p>Trong ph\u1ea3n \u1ee9ng hóa h\u1ecdc, theo \u0111\u1ecbnh lý b\u1ea3o toàn kh\u1ed1i l\u01b0\u1ee3ng, kh\u1ed1i l\u01b0\u1ee3ng các ch\u1ea5t không b\u1ecb m\u1ea5t \u0111i mà ch\u1ec9 thay \u0111\u1ed5i d\u1ea1ng.<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>C. b\u1eb1ng<\/strong><\/p><p>Theo \u0111\u1ecbnh lý b\u1ea3o toàn kh\u1ed1i l\u01b0\u1ee3ng, t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các ch\u1ea5t s\u1ea3n ph\u1ea9m trong m\u1ed9t ph\u1ea3n \u1ee9ng hóa h\u1ecdc luôn b\u1eb1ng t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các ch\u1ea5t ph\u1ea3n \u1ee9ng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-02-25 14:28:55","option_type":"txt","len":2}]}