{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Trong c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng sau \u0111\u00e2y hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o kh\u00f4ng ph\u1ea3i do s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng, h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed g\u00e2y ra?","select":["A. S\u1ef1 khu\u1ebfch t\u00e1n c\u1ee7a c\u00e0 ph\u00ea v\u00e0o n\u01b0\u1edbc.","B. Qu\u1ea3 b\u00f3ng bay d\u00f9 bu\u1ed9c th\u1eadt ch\u1eb7t v\u1eabn b\u1ecb x\u1eb9p d\u1ea7n theo th\u1eddi gian.","C. S\u1ef1 t\u1ea1o th\u00e0nh gi\u00f3.","D. \u0110\u01b0\u1eddng tan v\u00e0o n\u01b0\u1edbc."],"hint":"","explain":"<span class='basic_left'>S\u1ef1 t\u1ea1o th\u00e0nh gi\u00f3 kh\u00f4ng ph\u1ea3i do s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng, h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed g\u00e2y ra.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2840},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Khi c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng nhanh l\u00ean th\u00ec \u0111\u1ea1i l\u01b0\u1ee3ng n\u00e0o sau \u0111\u00e2y t\u0103ng l\u00ean?","select":["A. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u1eadt.","B. Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u1eadt.","C. Tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt.","D. C\u1ea3 kh\u1ed1i l\u01b0\u1ee3ng l\u1eabn tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a v\u1eadt."],"hint":"","explain":"<span class='basic_left'>Khi c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng nhanh l\u00ean th\u00ec nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u1eadt t\u0103ng l\u00ean.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2841},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn t\u1eeb th\u00edch h\u1ee3p \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/> Hi\u1ec7n t\u01b0\u1ee3ng ...................... l\u00e0 s\u1ef1 t\u1ef1 ho\u00e0 l\u1eabn v\u00e0o nhau c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ee7a c\u00e1c ch\u1ea5t do chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t.","select":["A. Ph\u00e2n ly.","B. Chuy\u1ec3n \u0111\u1ed9ng.","C. Dao \u0111\u1ed9ng.","D. Khu\u1ebfch t\u00e1n."],"hint":"","explain":"<span class='basic_left'>Hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n l\u00e0 s\u1ef1 t\u1ef1 ho\u00e0 l\u1eabn v\u00e0o nhau c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ee7a c\u00e1c ch\u1ea5t do chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2842},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn ph\u00e1t bi\u1ec3u sai:","select":["A. C\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng.","B. Nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao th\u00ec c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh.","C. Nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao th\u00ec c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng ch\u1eadm.","D. Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed li\u00ean quan ch\u1eb7t ch\u1ebd v\u1edbi nhi\u1ec7t \u0111\u1ed9 n\u00ean chuy\u1ec3n \u0111\u1ed9ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t."],"hint":"","explain":"<span class='basic_left'>Nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao th\u00ec c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2843},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"H\u00e3y ch\u1ec9 ra k\u1ebft lu\u1eadn \u0111\u00fang trong c\u00e1c k\u1ebft lu\u1eadn sau:","select":["A. Nguy\u00ean t\u1eed, ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh th\u00ec v\u1eadt c\u0169ng chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh.","B. C\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng.","C. Nguy\u00ean t\u1eed, ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng ch\u1eadm th\u00ec v\u1eadt c\u0169ng chuy\u1ec3n \u0111\u1ed9ng ch\u1eadm.","D. C\u1ea3 A v\u00e0 C \u0111\u1ec1u \u0111\u00fang."],"hint":"","explain":"<span class='basic_left'>C\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2844},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u0110\u1ed5 250$c{{m}^{3}}$ r\u01b0\u1ee3u v\u00e0o 200$c{{m}^{3}}$ n\u01b0\u1edbc s\u1ebd thu \u0111\u01b0\u1ee3c m\u1ed9t l\u01b0\u1ee3ng h\u1ed7n h\u1ee3p r\u01b0\u1ee3u v\u00e0 n\u01b0\u1edbc v\u1edbi th\u1ec3 t\u00edch:","select":["A. L\u1edbn h\u01a1n 450$c{{m}^{3}}$.","B. B\u1eb1ng 450 $c{{m}^{3}}$.","C. B\u1eb1ng ho\u1eb7c l\u1edbn h\u01a1n 450 $c{{m}^{3}}$.","D. Nh\u1ecf h\u01a1n 450 $c{{m}^{3}}$."],"hint":"","explain":"<span class='basic_left'>V\u00ec r\u01b0\u1ee3u tan v\u00e0o trong n\u01b0\u1edbc n\u00ean ta thu \u0111\u01b0\u1ee3c th\u1ec3 t\u00edch h\u1ed7n h\u1ee3p nh\u1ecf h\u01a1n t\u1ed5ng th\u1ec3 t\u00edch c\u1ee7a r\u01b0\u1ee3u v\u00e0 n\u01b0\u1edbc. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2845},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Trong \u0111i\u1ec1u ki\u1ec7n n\u00e0o th\u00ec hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n gi\u1eefa hai ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 x\u1ea3y ra nhanh h\u01a1n? ","select":["A. Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m.","B. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng.","C. Khi tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a c\u00e1c ch\u1ea5t l\u1ecfng l\u1edbn.","D. Khi th\u1ec3 t\u00edch c\u1ee7a c\u00e1c ch\u1ea5t l\u1ecfng l\u1edbn."],"hint":"","explain":"<span class='basic_left'>Hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n gi\u1eefa hai ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 x\u1ea3y ra nhanh h\u01a1n khi t\u0103ng nhi\u1ec7t \u0111\u1ed9. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2846},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n x\u1ea3y ra nhanh h\u01a1n trong ch\u1ea5t kh\u00ed khi:","select":["A. Khi t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a kh\u1ed1i kh\u00ed.","B. Khi t\u0103ng \u0111\u1ed9 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 trong kh\u1ed1i kh\u00ed.","C. Khi cho kh\u1ed1i kh\u00ed d\u00e3n n\u1edf.","D. Khi gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a kh\u1ed1i kh\u00ed."],"hint":"","explain":"<span class='basic_left'>Hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n x\u1ea3y ra nhanh h\u01a1n trong ch\u1ea5t kh\u00ed khi t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a kh\u1ed1i kh\u00ed.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2847},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Trong th\u00ed nghi\u1ec7m c\u1ee7a Brao, t\u1ea1i sao c\u00e1c h\u1ea1t ph\u1ea5n hoa chuy\u1ec3n \u0111\u1ed9ng?","select":["A. Do m\u1ed9t nguy\u00ean nh\u00e2n kh\u00e1c.","B. Do gi\u1eefa c\u00e1c h\u1ea1t ph\u1ea5n hoa c\u00f3 kho\u1ea3ng c\u00e1ch.","C. Do c\u00e1c h\u1ea1t ph\u1ea5n hoa t\u1ef1 chuy\u1ec3n \u0111\u1ed9ng.","D. Do c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng v\u00e0 va ch\u1ea1m v\u00e0o c\u00e1c h\u1ea1t ph\u1ea5n hoa t\u1eeb nhi\u1ec1u ph\u00eda."],"hint":"","explain":"<span class='basic_left'>Trong th\u00ed nghi\u1ec7m c\u1ee7a Brao, c\u00e1c h\u1ea1t ph\u1ea5n hoa chuy\u1ec3n \u0111\u1ed9ng do c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n \u0111\u1ed9n kh\u00f4ng ng\u1eebng v\u00e0 va ch\u1ea1m v\u00e0o c\u00e1c h\u1ea1t ph\u1ea5n hoa t\u1eeb nhi\u1ec1u ph\u00eda. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2848},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"C\u00f3 hai c\u1ed1c n\u01b0\u1edbc: C\u1ed1c (1) ch\u1ee9a n\u01b0\u1edbc l\u1ea1nh, c\u1ed1c (2) ch\u1ee9a n\u01b0\u1edbc n\u00f3ng. T\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc trong: ","select":["A. c\u1ed1c (1) l\u1edbn h\u01a1n c\u1ed1c (2).","B. c\u1ed1c (2) l\u1edbn h\u01a1n c\u1ed1c (1).","C. Hai c\u1ed1c b\u1eb1ng nhau.","D. Kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9."],"hint":"","explain":"<span class='basic_left'>T\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc trong c\u1ed1c (2) l\u1edbn h\u01a1n c\u1ed1c (1) v\u00ec nhi\u1ec7t \u0111\u1ed9 cao c\u00e1c ph\u00e2n t\u1eed chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2849},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u sai.","select":["A. Vi\u1ec7c \u0111\u01b0\u1eddng tan trong n\u01b0\u1edbc ch\u1ee9ng t\u1ecf gi\u1eefa c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc c\u00f3 kho\u1ea3ng c\u00e1ch.","B. C\u00e1 v\u1eabn s\u1ed1ng \u0111\u01b0\u1ee3c \u1edf s\u00f4ng, h\u1ed3, ao, bi\u1ec3n. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y kh\u00f4ng kh\u00ed truy\u1ec1n \u0111\u01b0\u1ee3c v\u00e0o n\u01b0\u1edbc.","C. Kh\u00f4ng kh\u00ed h\u00f2a tr\u1ed9n v\u1edbi m\u1ed9t kh\u00ed kh\u00e1c d\u1ec5 h\u01a1n \u0111i v\u00e0o m\u1ed9t ch\u1ea5t l\u1ecfng.","D. Ch\u1ea5t r\u1eafn ho\u00e0n to\u00e0n kh\u00f4ng cho m\u1ed9t ch\u1ea5t kh\u00ed \u0111i qua v\u00ec gi\u1eefa c\u00e1c h\u1ea1t c\u1ea5u th\u00e0nh ch\u1ea5t r\u1eafn kh\u00f4ng c\u00f3 kho\u1ea3ng c\u00e1ch."],"hint":"","explain":"<span class='basic_left'>Ch\u1ea5t r\u1eafn c\u00f3 th\u1ec3 cho m\u1ed9t ch\u1ea5t kh\u00ed \u0111i qua v\u00ec gi\u1eefa c\u00e1c h\u1ea1t c\u1ea5u th\u00e0nh ch\u1ea5t r\u1eafn c\u00f3 kho\u1ea3ng c\u00e1ch.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2850},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"T\u00ednh ch\u1ea5t n\u00e0o sau \u0111\u00e2y kh\u00f4ng ph\u1ea3i c\u1ee7a ph\u00e2n t\u1eed, nguy\u00ean t\u1eed?","select":["A. Chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng.","B. C\u00f3 l\u00fac chuy\u1ec3n \u0111\u1ed9ng, c\u00f3 l\u00fac \u0111\u1ee9ng y\u00ean.","C. C\u00f3 kh\u1ed1i l\u01b0\u1ee3ng.","D. Gi\u1eefa c\u00e1c ph\u00e2n t\u1eed c\u00f3 kho\u1ea3ng c\u00e1ch."],"hint":"","explain":"<span class='basic_left'>S\u1eeda th\u00e0nh ph\u00e2n t\u1eed, ngu\u00ean t\u1eed chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2851},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang khi n\u00f3i v\u1ec1 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ph\u00e2n t\u1eed, nguy\u00ean t\u1eed:","select":["A. C\u00e1c ph\u00e2n t\u1eed, nguy\u00ean t\u1eed c\u00f3 l\u00fac chuy\u1ec3n \u0111\u1ed9ng c\u00f3 l\u00fac \u0111\u1ee9ng y\u00ean.","B. C\u00e1c ph\u00e2n t\u1eed, nguy\u00ean t\u1eed chuy\u1ec3n \u0111\u1ed9ng theo h\u01b0\u1edbng nh\u1ea5t \u0111\u1ecbnh.","C. Nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao th\u00ec c\u00e1c ph\u00e2n t\u1eed nguy\u00ean t\u1eed chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng ch\u1eadm l\u1ea1i.","D. C\u00e1c ph\u00e2n t\u1eed, nguy\u00ean t\u1eed t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh th\u00ec nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao."],"hint":"","explain":"<span class='basic_left'>C\u00e1c ph\u00e2n t\u1eed, nguy\u00ean t\u1eed t\u1ea1o n\u00ean v\u1eadt chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng nhanh th\u00ec nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2852},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Brao \u0111\u00e3 l\u00e0m th\u00ed nghi\u1ec7m v\u1edbi c\u00e1c h\u1ea1t ph\u1ea5n hoa, v\u00e0 qua th\u00ed nghi\u1ec7m n\u00e0y \u00f4ng \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111i\u1ec1u g\u00ec?","select":["A. C\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc h\u00fat v\u00e0 \u0111\u1ea9y h\u1ea1t ph\u1ea5n hoa.","B. C\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc l\u00fac th\u00ec \u0111\u1ee9ng y\u00ean, l\u00fac th\u00ec chuy\u1ec3n \u0111\u1ed9ng.","C. H\u1ea1t ph\u1ea5n hoa h\u00fat v\u00e0 \u0111\u1ea9y c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc.","D. C\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc kh\u00f4ng \u0111\u1ee9ng y\u00ean m\u00e0 chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng."],"hint":"","explain":"<span class='basic_left'>Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ea1t ph\u1ea5n hoa trong th\u00ed nghi\u1ec7m c\u1ee7a Brao ch\u1ee9ng t\u1ecf c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc kh\u00f4ng \u0111\u1ee9ng y\u00ean m\u00e0 chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2853},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"M\u1ed7i ph\u00e2n t\u1eed n\u01b0\u1edbc g\u1ed3m 1 nguy\u00ean t\u1eed oxi v\u00e0 2 nguy\u00ean t\u1eed hidr\u00f4. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean t\u1eed hidr\u00f4 l\u00e0 $1,67\\times {{10}^{-27}}$kg, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean t\u1eed oxi l\u00e0 $26,56\\times {{10}^{-27}}$. X\u00e1c \u0111\u1ecbnh s\u1ed1 ph\u00e2n t\u1eed n\u01b0\u1edbc trong 1 gam n\u01b0\u1edbc.","select":["A. $1,8\\times {{10}^{20}}$ ph\u00e2n t\u1eed.","B. $2,5\\times {{10}^{24}}$ ph\u00e2n t\u1eed.","C. $3,24\\times {{10}^{22}}$ ph\u00e2n t\u1eed.","D. $4\\times {{10}^{21}}$ ph\u00e2n t\u1eed."],"hint":"","explain":"<span class='basic_left'>Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t ph\u00e2n t\u1eed n\u01b0\u1edbc l\u00e0:<br\/>${{m}_{ptnc}}={{m}_{oxi}}+2{{m}_{hidro}}$ <br\/>S\u1ed1 ph\u00e2n t\u1eed n\u01b0\u1edbc trong 1g n\u01b0\u1edbc l\u00e0: $n=\\dfrac{1g}{{{m}_{ptnc}}}$ <br\/> Thay s\u1ed1: n= $3,24\\times {{10}^{22}}$ ph\u00e2n t\u1eed.<br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2854},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Khi gi\u1ea3m nhi\u1ec7t \u0111\u1ed9, hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n s\u1ebd s\u1ea3y ra nh\u01b0 th\u1ebf n\u00e0o?","select":["A. X\u1ea3y ra ch\u1eadm h\u01a1n.","B. X\u1ea3y ra nhanh h\u01a1n.","C. Kh\u00f4ng thay \u0111\u1ed5i.","D. C\u00f3 th\u1ec3 x\u1ea3y ra ch\u1eadm h\u01a1n ho\u1eb7c nhanh h\u01a1n."],"hint":"","explain":"<span class='basic_left'>Khi gi\u1ea3m nhi\u1ec7t \u0111\u1ed9, hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n s\u1ebd x\u1ea3y ra ch\u1eadm h\u01a1n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2855},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u sai.<br\/>Chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t c\u1ee7a c\u00e1c ph\u00e2n t\u1eed c\u1ee7a m\u1ed9t ch\u1ea5t kh\u00ed c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t sau:","select":["A. C\u00e1c v\u1eadn t\u1ed1c c\u1ee7a c\u00e1c ph\u00e2n t\u1eed c\u00f3 th\u1ec3 r\u1ea5t kh\u00e1c nhau v\u1ec1 \u0111\u1ed9 l\u1edbn.","B. C\u00e1c ph\u00e2n t\u1eed kh\u00ed chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n lo\u1ea1n.","C. Sau m\u1ed7i va ch\u1ea1m \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c c\u1ee7a c\u00e1c ph\u00e2n t\u1eed kh\u00f4ng thay \u0111\u1ed5i.","D. Khi chuy\u1ec3n \u0111\u1ed9ng c\u00e1c ph\u00e2n t\u1eed va ch\u1ea1m nhau."],"hint":"","explain":"<span class='basic_left'>. Sau m\u1ed7i va ch\u1ea1m \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c c\u1ee7a c\u00e1c ph\u00e2n t\u1eed s\u1ebd b\u1ecb thay \u0111\u1ed5i. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2856},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t b\u1edfi v\u00ec:","select":["A. V\u1eadt c\u00f3 nhi\u1ec7t l\u01b0\u1ee3ng c\u00e0ng nhi\u1ec1u th\u00ec c\u00e1c h\u1ea1t chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng m\u1ea1nh m\u1ebd.","B. Ph\u1ea3i nung n\u00f3ng v\u1eadt th\u00ec c\u00e1c h\u1ea1t m\u1edbi chuy\u1ec3n \u0111\u1ed9ng.","C. Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u00e2n t\u1eed, nguy\u00ean t\u1eed li\u00ean quan ch\u1eb7t ch\u1ebd t\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u1eadt.","D. Chuy\u1ec3n \u0111\u1ed9ng n\u00e0y l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u c\u1ee7a Nhi\u1ec7t h\u1ecdc."],"hint":"","explain":"<span class='basic_left'>Chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng ng\u1eebng c\u1ee7a c\u00e1c nguy\u00ean t\u1eed, ph\u00e2n t\u1eed c\u1ea5u t\u1ea1o n\u00ean v\u1eadt \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 chuy\u1ec3n \u0111\u1ed9ng nhi\u1ec7t b\u1edfi v\u00ec v\u1eadt c\u00f3 nhi\u1ec7t l\u01b0\u1ee3ng c\u00e0ng nhi\u1ec1u th\u00ec c\u00e1c h\u1ea1t chuy\u1ec3n \u0111\u1ed9ng c\u00e0ng m\u1ea1nh m\u1ebd.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2857},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"\u0110i\u1ec1u ki\u1ec7n \u0111\u1ec3 hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n x\u1ea3y ra trong m\u1ed9t ch\u1ea5t kh\u00ed l\u00e0:","select":["A. Kh\u1ed1i kh\u00ed \u0111\u01b0\u1ee3c nung n\u00f3ng.","B. V\u1eadn t\u1ed1c c\u00e1c ph\u00e2n t\u1eed kh\u00ed kh\u00f4ng nh\u01b0 nhau.","C. N\u1ed3ng \u0111\u1ed9 ph\u00e2n t\u1eed trong kh\u1ed1i kh\u00ed kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.","D. C\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 trong kh\u1ed1i kh\u00ed."],"hint":"","explain":"<span class='basic_left'>\u0110i\u1ec1u ki\u1ec7n \u0111\u1ec3 hi\u1ec7n t\u01b0\u1ee3ng khu\u1ebfch t\u00e1n x\u1ea3y ra trong m\u1ed9t ch\u1ea5t kh\u00ed l\u00e0 n\u1ed3ng \u0111\u1ed9 ph\u00e2n t\u1eed trong kh\u1ed1i kh\u00ed kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2858},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Trong th\u00ed nghi\u1ec7m c\u1ee7a Brao- n\u01a1, qu\u1ea3 b\u00f3ng t\u01b0\u01a1ng t\u1ef1 v\u1edbi h\u1ea1t n\u00e0o?","select":["A. H\u1ea1t ph\u00e2n t\u1eed.","B. H\u1ea1t nguy\u00ean t\u1eed.","C. H\u1ea1t ph\u1ea5n hoa.","D. T\u1ea5t c\u1ea3 \u0111\u1ec1u sai."],"hint":"","explain":"<span class='basic_left'>Trong th\u00ed nghi\u1ec7m c\u1ee7a Brao- n\u01a1, qu\u1ea3 b\u00f3ng t\u01b0\u01a1ng t\u1ef1 v\u1edbi h\u1ea1t ph\u1ea5n hoa. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2859}],"lesson":{"save":0,"level":2}}