Ôn tập chương 2 - Phân tử. Liên kết hóa học

Home Lớp 7 Khoa học tự nhiên 7 - Sách kết nối tri thức Ôn tập chương 2Bài tập nâng cao

{"common":{"save":0,"post_id":"6055","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9353","post_id":"6055","mon_id":"1158750","chapter_id":"1158757","question":"Trong các hình d\u01b0\u1edbi \u0111ây, m\u1ed7i hình vuông bi\u1ec3u di\u1ec5n m\u1ed9t h\u1ed9p ch\u1ee9a; m\u1ed7i hình tròn bi\u1ec3u di\u1ec5n m\u1ed9t nguyên t\u1eed, các hình tròn màu \u0111\u1ecf, màu xanh, màu vàng bi\u1ec3u di\u1ec5n các nguyên t\u1eed c\u1ee7a các nguyên t\u1ed1 hóa h\u1ecdc khác nhau. Hình nào d\u01b0\u1edbi \u0111ây phù h\u1ee3p v\u1edbi mô t\u1ea3 "H\u1ed7n h\u1ee3p g\u1ed3m m\u1ed9t \u0111\u01a1n ch\u1ea5t và m\u1ed9t h\u1ee3p ch\u1ea5t<\/span>".<\/p>","options":["A. <svg height=\"113\" width=\"138\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"115\" id=\"canvas_background\" width=\"140\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <rect fill=\"#fff\" height=\"110\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"135\" x=\"1.30625\" y=\"1.8375\"><\/rect> <ellipse cx=\"41.30625\" cy=\"36.3375\" fill=\"#ff0000\" id=\"svg_11\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"44.30625\" cy=\"76.3375\" fill=\"#ffff56\" id=\"svg_12\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"104.30625\" cy=\"91.3375\" fill=\"#ffff56\" id=\"svg_13\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"113.30625\" cy=\"49.3375\" fill=\"#ffff56\" id=\"svg_2\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"28.30625\" cy=\"26.3375\" fill=\"#ffff56\" id=\"svg_3\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"43.30625\" cy=\"91.3375\" fill=\"#ff0000\" id=\"svg_4\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"114.30625\" cy=\"33.3375\" fill=\"#ff0000\" id=\"svg_5\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"119.30625\" cy=\"90.3375\" fill=\"#ff0000\" id=\"svg_6\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/strong>","B. <svg height=\"113\" width=\"138\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"115\" id=\"canvas_background\" width=\"140\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"110\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"135\" x=\"1.30625\" y=\"1.8375\"><\/rect> <ellipse cx=\"26.30625\" cy=\"30.3375\" fill=\"#56ffff\" id=\"svg_2\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"56.30625\" cy=\"94.3375\" fill=\"#56ffff\" id=\"svg_3\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"120.30625\" cy=\"63.3375\" fill=\"#56ffff\" id=\"svg_4\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"83.30625\" cy=\"62.3375\" fill=\"#56ffff\" id=\"svg_5\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"55.30625\" cy=\"28.3375\" fill=\"#ff0000\" id=\"svg_6\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"33.30625\" cy=\"65.3375\" fill=\"#ff0000\" id=\"svg_7\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"102.30625\" cy=\"23.3375\" fill=\"#ff0000\" id=\"svg_8\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"118.30625\" cy=\"96.3375\" fill=\"#ff0000\" id=\"svg_9\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/strong>","C. <svg height=\"113\" width=\"138\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"115\" id=\"canvas_background\" width=\"140\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"110\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"135\" x=\"1.30625\" y=\"1.8375\"><\/rect> <ellipse cx=\"57.30625\" cy=\"44.3375\" fill=\"#ffff56\" id=\"svg_11\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"44.30625\" cy=\"76.3375\" fill=\"#ffff56\" id=\"svg_12\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"90.30625\" cy=\"81.3375\" fill=\"#ffff56\" id=\"svg_13\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"113.30625\" cy=\"49.3375\" fill=\"#ffff56\" id=\"svg_2\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"28.30625\" cy=\"26.3375\" fill=\"#ffff56\" id=\"svg_3\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/strong>","D. <svg height=\"113\" width=\"138\"> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"115\" id=\"canvas_background\" width=\"140\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\n<title><\/title>\n<rect fill=\"#fff\" height=\"110\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"135\" x=\"1.30625\" y=\"1.8375\"><\/rect> <ellipse cx=\"26.30625\" cy=\"30.3375\" fill=\"#56ffff\" id=\"svg_2\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"120.30625\" cy=\"63.3375\" fill=\"#56ffff\" id=\"svg_4\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"101.30625\" cy=\"32.3375\" fill=\"#56ffff\" id=\"svg_5\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"55.30625\" cy=\"28.3375\" fill=\"#ff0000\" id=\"svg_6\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"33.30625\" cy=\"89.3375\" fill=\"#ff0000\" id=\"svg_7\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"102.30625\" cy=\"92.3375\" fill=\"#ff0000\" id=\"svg_9\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"57.30625\" cy=\"44.3375\" fill=\"#ffff56\" id=\"svg_11\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"44.30625\" cy=\"76.3375\" fill=\"#ffff56\" id=\"svg_12\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"90.30625\" cy=\"81.3375\" fill=\"#ffff56\" id=\"svg_13\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/strong>"],"correct":"4","level":"3","hint":"","answer":"Hình phù h\u1ee3p v\u1edbi mô t\u1ea3 "H\u1ed7n h\u1ee3p g\u1ed3m m\u1ed9t \u0111\u01a1n ch\u1ea5t và m\u1ed9t h\u1ee3p ch\u1ea5t<\/span>" là<\/p>D. <\/span><svg height=\"113\" width=\"138\"> <g><title><\/title><rect fill=\"#fff\" height=\"115\" id=\"canvas_background\" width=\"140\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#fff\" height=\"110\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"135\" x=\"1.30625\" y=\"1.8375\"><\/rect> <ellipse cx=\"26.30625\" cy=\"30.3375\" fill=\"#56ffff\" id=\"svg_2\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"120.30625\" cy=\"63.3375\" fill=\"#56ffff\" id=\"svg_4\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"101.30625\" cy=\"32.3375\" fill=\"#56ffff\" id=\"svg_5\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"55.30625\" cy=\"28.3375\" fill=\"#ff0000\" id=\"svg_6\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"33.30625\" cy=\"89.3375\" fill=\"#ff0000\" id=\"svg_7\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"102.30625\" cy=\"92.3375\" fill=\"#ff0000\" id=\"svg_9\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"57.30625\" cy=\"44.3375\" fill=\"#ffff56\" id=\"svg_11\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"44.30625\" cy=\"76.3375\" fill=\"#ffff56\" id=\"svg_12\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"90.30625\" cy=\"81.3375\" fill=\"#ffff56\" id=\"svg_13\" rx=\"8\" ry=\"8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/strong><\/p>","type":"choose_img","extra_type":"","time":"0","user_id":"131","test":"0","date":"2022-08-20 02:00:49"},{"id":"9354","post_id":"6055","mon_id":"1158750","chapter_id":"1158757","question":"Tính thành ph\u1ea7n ph\u1ea7n tr\u0103m kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các nguyên t\u1ed1 trong h\u1ee3p ch\u1ea5t $NaNO_3$<\/span>.<\/p>","options":["A. <\/strong>%Na = 21,7%, %N = 16,5%, %O = 61,8%","B. <\/strong>%Na = 16,5%, %N = 27,1%, %O = 56,4%","C. <\/strong>%Na = 27,1%, %N = 16,5%, %O = 56,4%","D. <\/strong>%Na = 56,4%, %N = 16,5%, %O = 27,1%"],"correct":"3","level":"3","hint":"","answer":"Kh\u1ed1i l\u01b0\u1ee3ng phân t\u1eed c\u1ee7a $NaNO_3$<\/span> là:<\/p>23 + 14 + 3 . 16 = 85 (amu)<\/p>Thành ph\u1ea7n ph\u1ea7n tr\u0103m v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a các nguyên t\u1ed1 trong h\u1ee3p ch\u1ea5t $NaNO_3$<\/span> là:<\/p>%Na = $\\dfrac{23.100\\%}{85}$<\/span> ≈ 27,1%<\/span><\/p>%N = $\\dfrac{14.100\\%}{85}$<\/span> ≈ 16,5%<\/span><\/p>%O = 100% – 27,1% – 16,5% = 56,4%<\/span><\/p>\u0110áp án \u0111úng là  C. <\/strong>%Na = 27,1%, %N = 16,5%, %O = 56,4%<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2022-08-20 02:12:48","option_type":"txt","len":2},{"id":"9355","post_id":"6055","mon_id":"1158750","chapter_id":"1158757","question":"H\u1ee3p ch\u1ea5t nào d\u01b0\u1edbi \u0111ây \u0111\u01b0\u1ee3c t\u1ea1o thành t\u1eeb ba nguyên t\u1ed1 hóa h\u1ecdc tr\u1edf lên?<\/p>","options":["A. <\/strong>$HNO_3$<\/span>","B. <\/strong>$(NH_4)_2CO_3$<\/span><\/strong>","C. <\/strong>$KMnO_4$<\/span>","D. <\/strong>$Na_2S\\space$<\/span>"],"correct":"[\"1\",\"2\",\"3\"]","level":"3","hint":"","answer":"A. <\/strong>$HNO_3$<\/span>   <\/strong> (\u0111úng <\/span>vì $HNO_3$<\/span><\/strong> t\u1ea1o ra t\u1eeb 3<\/span><\/strong> nguyên t\u1ed1 là H, N và O)<\/p>B. $(NH_4)_2CO_3$<\/span><\/strong>       (\u0111úng <\/span>vì $(NH_4)_2CO_3$<\/span><\/strong> t\u1ea1o ra t\u1eeb 4<\/strong><\/span> nguyên t\u1ed1 là N, H, C và O)<\/p>C. <\/strong>$KMnO_4$<\/span>     <\/strong> (\u0111úng <\/span>vì $KMnO_4$<\/span> t\u1ea1o ra t\u1eeb <\/span>3<\/span><\/strong> nguyên t\u1ed1 là K, Mn và O)<\/p>D. <\/strong>$Na_2S\\space$<\/span>     <\/strong>  (sai <\/span>vì $Na_2S\\space$<\/span><\/strong> t\u1ea1o ra t\u1eeb <\/span>2<\/strong> <\/span>nguyên t\u1ed1 là Na và S)<\/p>Các \u0111áp án \u0111úng là  A. <\/strong>$HNO_3$<\/span><\/span><\/p>B. $(NH_4)_2CO_3$<\/span><\/strong>  <\/span><\/p>C. <\/strong>$KMnO_4$<\/span>    <\/strong><\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"0","date":"2022-08-20 03:44:49","option_type":"math","len":0}]}