{"common":{"save":0,"post_id":"8513","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7546","post_id":"8513","mon_id":"1159539","chapter_id":"1159541","question":"<p>N\u01b0\u1edbc không th\u1ec3 hòa tan ch\u1ea5t nào sau \u0111ây?<\/p>","options":["A. \u0110\u01b0\u1eddng","B. Mu\u1ed1i","C. Cát","D. Mì chính"],"correct":"3","level":"1","hint":"<p>Ch\u1ea5t nào sau \u0111ây không tan trong n\u01b0\u1edbc dù b\u1ea1n có khu\u1ea5y \u0111\u1ec1u?<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>C. Cát<\/strong><\/p><p>Cát là ch\u1ea5t không tan trong n\u01b0\u1edbc, mà ch\u1ec9 l\u1eafng xu\u1ed1ng khi \u0111\u01b0\u1ee3c th\u1ea3 vào n\u01b0\u1edbc, trong khi \u0111\u01b0\u1eddng, mu\u1ed1i và mì chính \u0111\u1ec1u hòa tan trong n\u01b0\u1edbc.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-02-23 20:03:53","option_type":"txt","len":2},{"id":"7547","post_id":"8513","mon_id":"1159539","chapter_id":"1159541","question":"<p>N\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m c\u1ee7a m\u1ed9t dung d\u1ecbch cho ta bi\u1ebft:<\/p>","options":["A. s\u1ed1 mol ch\u1ea5t tan trong m\u1ed9t lít dung d\u1ecbch.","B. s\u1ed1 gam ch\u1ea5t tan có trong 100 gam dung d\u1ecbch.","C. s\u1ed1 mol ch\u1ea5t tan có trong 150 gam dung d\u1ecbch.","D. s\u1ed1 gam ch\u1ea5t tan có trong dung d\u1ecbch."],"correct":"2","level":"1","hint":"<p>N\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m th\u01b0\u1eddng liên quan \u0111\u1ebfn l\u01b0\u1ee3ng ch\u1ea5t tan so v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng dung d\u1ecbch.<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>B. s\u1ed1 gam ch\u1ea5t tan có trong 100 gam dung d\u1ecbch.<\/strong><\/p><p>N\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m (%) c\u1ee7a dung d\u1ecbch \u0111\u01b0\u1ee3c tính là t\u1ef7 l\u1ec7 gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t tan và kh\u1ed1i l\u01b0\u1ee3ng dung d\u1ecbch, nhân v\u1edbi 100. Do \u0111ó, n\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m cho bi\u1ebft s\u1ed1 gam ch\u1ea5t tan trong 100 gam dung d\u1ecbch.<\/p>","type":"choose","extra_type":"cloud","time":"0","user_id":"139","test":"0","date":"2025-02-23 20:07:22","option_type":"txt","len":0},{"id":"7548","post_id":"8513","mon_id":"1159539","chapter_id":"1159541","question":"<p>\u0110i\u1ec1n vào ch\u1ed7 tr\u1ed1ng: "Dung môi th\u01b0\u1eddng là n\u01b0\u1edbc \u1edf th\u1ec3 ..., ch\u1ea5t tan có th\u1ec3 \u1edf th\u1ec3 r\u1eafn, l\u1ecfng ho\u1eb7c khí"<\/p>","options":["A. L\u1ecfng","B. R\u1eafn","C. Khí","D. T\u1ea5t c\u1ea3 các \u0111áp án trên"],"correct":"1","level":"1","hint":"<p>Dung môi trong các dung d\u1ecbch ph\u1ed5 bi\u1ebfn th\u01b0\u1eddng là n\u01b0\u1edbc, và b\u1ea1n c\u1ea7n xác \u0111\u1ecbnh th\u1ec3 tr\u1ea1ng c\u1ee7a n\u01b0\u1edbc trong h\u1ea7u h\u1ebft các tr\u01b0\u1eddng h\u1ee3p.<\/p>","answer":"<p>\u0110áp án \u0111úng: <strong>A. L\u1ecfng<\/strong><\/p><p>Dung môi th\u01b0\u1eddng là n\u01b0\u1edbc \u1edf th\u1ec3 l\u1ecfng vì n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong các dung d\u1ecbch \u0111\u1ec3 hòa tan các ch\u1ea5t khác, nh\u01b0 ch\u1ea5t r\u1eafn, l\u1ecfng ho\u1eb7c khí.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"139","test":"0","date":"2025-02-23 20:08:03","option_type":"txt","len":3}]}
