{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"D\u00e3y ch\u1ea5t n\u00e0o sau \u0111\u00e2y \u0111\u1ec1u l\u00e0 h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 ","select":["A. $C{{H}_{4}}, {{C}_{2}}{{H}_{2}}, {{C}_{6}}{{H}_{12}}{{O}_{6}}, AlCl$ ","B. $CaO, HCl, N{{H}_{3}}, {{H}_{2}}O$ ","C. $CuO, NaCl, C{{H}_{4}}, {{H}_{2}}O$ ","D. $C{{H}_{4}}, {{H}_{2}}O, {{C}_{2}}{{H}_{2}}, FeO$ "],"hint":"","explain":"<span class='basic_left'>H\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 l\u00e0 nh\u1eefng h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc kh\u00f4ng c\u00f3 m\u1eb7t nguy\u00ean t\u1eed cacbon, ngo\u1ea1i tr\u1eeb kh\u00ed CO, kh\u00ed $C{{O}_{2}}$, acid ${{H}_{2}}C{{O}_{3}}$ v\u00e0 c\u00e1c mu\u1ed1i cacbonat, hidrocacbonat <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B .<\/span><\/span> ","column":2}]}],"id_ques":1980},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"Nh\u1eefng nguy\u00ean t\u1eed c\u00f9ng lo\u1ea1i c\u00f3 c\u00f9ng s\u1ed1 P trong h\u1ea1t nh\u00e2n, \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 ","select":["A. Nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc ","B. Nguy\u00ean t\u1eed ","C. Ph\u00e2n t\u1eed ","D. Ch\u1ea5t "],"hint":"","explain":"<span class='basic_left'>Nh\u1eefng nguy\u00ean t\u1eed c\u00f9ng lo\u1ea1i c\u00f3 c\u00f9ng s\u1ed1 P trong h\u1ea1t nh\u00e2n, \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":1981},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":"Ch\u1ea5t natri cacbonat (so\u0111a) c\u00f3 ph\u00e2n t\u1eed g\u1ed3m $2Na, 1C, 3O$ li\u00ean k\u1ebft v\u1edbi nhau. C\u00f3 ph\u00e2n t\u1eed kh\u1ed1i ( PTK ) l\u00e0 ","select":["A. 160 \u0111vc","B. 170 \u0111vC","C. 150 \u0111vC","D. 106 \u0111vC"],"hint":"","explain":"<span class='basic_left'>Ph\u00e2n t\u1eed kh\u1ed1i l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t ph\u00e2n t\u1eed t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb cacbon <br\/>Ta c\u00f3: $PTK=2.23+12+3.16=106$ \u0111vC<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":1982},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":"Nguy\u00ean t\u1eed c\u1ee7a nguy\u00ean t\u1ed1 X c\u00f3 t\u1ed5ng s\u1ed1 h\u1ea1t l\u00e0 52 v\u00e0 nguy\u00ean t\u1eed kh\u1ed1i(NTK) l\u00e0 35. S\u1ed1 electron c\u1ee7a nguy\u00ean t\u1eed nguy\u00ean t\u1ed1 X l\u00e0 ","select":["A. 18 ","B. 23 ","C. 15 ","D. 17 "],"hint":"","explain":"<span class='basic_left'>Ta c\u00f3: kh\u1ed1i l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed( nguy\u00ean t\u1eed kh\u1ed1i) NTK= s\u1ed1 p + s\u1ed1 n<br\/>$\\Rightarrow \\left\\{ \\begin{aligned} & p+n+e=52 \\\\ & p=e \\\\ & n+p=35 \\\\ \\end{aligned} \\right.\\Rightarrow \\left\\{ \\begin{aligned} & 2p+n=52 \\\\ & p+n=35 \\\\ \\end{aligned} \\right.\\Rightarrow \\left\\{ \\begin{aligned} & p=17 \\\\ & n=18 \\\\ \\end{aligned} \\right.$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":1983},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"C\u00e1ch vi\u1ebft $4C, 5O, 10Ca$ l\u1ea7n l\u01b0\u1ee3t ch\u1ec9 \u00fd g\u00ec? ","select":["A. 4 nguy\u00ean t\u1eed Cacbon, 5 nguy\u00ean t\u1eed Oxi, 10 nguy\u00ean t\u1eed Canxi ","B. 5 nguy\u00ean t\u1eed Cacbon, 10 nguy\u00ean t\u1eed Oxi, 4 nguy\u00ean t\u1eed Canxi ","C. nguy\u00ean t\u1eed Cacbon, nguy\u00ean t\u1eed Oxi, nguy\u00ean t\u1eed Canxi ","D. 4 nguy\u00ean t\u1eed Cacbon, 5 nguy\u00ean t\u1eed Oxi, nguy\u00ean t\u1eed Canxi "],"hint":"","explain":"<span class='basic_left'>Theo quy \u01b0\u1edbc m\u1ed7i k\u00fd hi\u1ec7u c\u1ee7a nguy\u00ean t\u1ed1 c\u00f2n ch\u1ec9 1 nguy\u00ean t\u1eed nguy\u00ean t\u1ed1 \u0111\u00f3. Th\u00ed d\u1ee5, mu\u1ed1n ch\u1ec9 hai nguy\u00ean t\u1eed hidro vi\u1ebft 2H<br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A .<\/span><\/span> ","column":1}]}],"id_ques":1984},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"Nguy\u00ean t\u1eed X n\u1eb7ng g\u1ea5p $\\dfrac{8}{3}$ l\u1ea7n nguy\u00ean t\u1eed Cacbon. K\u00fd hi\u1ec7u h\u00f3a h\u1ecdc c\u1ee7a nguy\u00ean t\u1eed X v\u00e0 X thu\u1ed9c nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 ( xem b\u1ea3ng 1\/trang 42\/ SGK h\u00f3a 8 )","select":["A. P v\u00e0 P l\u00e0 nguy\u1ebfn t\u1ed1 phi kim ","B. S v\u00e0 S l\u00e0 nguy\u00ean t\u1ed1 phi kim","C. Na v\u00e0 Na l\u00e0 nguy\u00ean t\u1ed1 kim lo\u1ea1i","D. K v\u00e0 K l\u00e0 nguy\u00ean t\u1ed1 kim lo\u1ea1i"],"hint":"","explain":"<span class='basic_left'>Nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a X l\u00e0 ${{M}_{X}}=\\dfrac{8}{3}.{{M}_{Cacbon}}=\\dfrac{8}{3}.12=32$ <br\/>Tra b\u1ea3ng ta th\u1ea5y X l\u00e0 l\u01b0u hu\u1ef3nh ( S ) v\u00e0 thu\u1ed9c nguy\u00ean t\u1ed1 phi kim<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":1985},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"Nguy\u00ean t\u1eed X n\u1eb7ng b\u1eb1ng $\\dfrac{1}{2}$ nguy\u00ean t\u1eed Y v\u00e0 nguy\u00ean t\u1eed Y n\u1eb7ng b\u1eb1ng 1,5 nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a Z. K\u00fd hi\u1ec7u h\u00f3a h\u1ecdc c\u1ee7a X v\u00e0 Y l\u1ea7n l\u01b0\u1ee3t l\u00e0 ( Bi\u1ebft Z l\u00e0 nguy\u00ean t\u1ed1 Oxi) ","select":["A. Ca v\u00e0 Mg ","B. C v\u00e0 Na ","C. C v\u00e0 Mg ","D. P v\u00e0 K "],"hint":"","explain":"<span class='basic_left'>Ta c\u00f3 nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a X v\u00e0 Y l\u00e0<br\/>$\\left\\{ \\begin{aligned} & {{M}_{X}}=\\dfrac{1}{2}{{M}_{Y}} \\\\ & {{M}_{Y}}=1,5{{M}_{O}} \\\\ \\end{aligned} \\right.\\Rightarrow \\left\\{ \\begin{aligned} & {{M}_{X}}=\\dfrac{1}{2}.24=12 \\\\ & {{M}_{Y}}=1,5.16=24 \\\\ \\end{aligned} \\right.$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":1986},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":"D\u00e3y c\u00e1c ch\u1ea5t n\u00e0o sau \u0111\u00e2y \u0111\u1ec1u l\u00e0 ch\u1ea5t kh\u00f4ng tinh khi\u1ebft ","select":["A. N\u01b0\u1edbc kho\u00e1ng, n\u01b0\u1edbc bi\u1ec3n, n\u01b0\u1edbc gi\u1ebfng, n\u01b0\u1edbc s\u00f4ng su\u1ed1i ","B. N\u01b0\u1edbc c\u1ea5t, r\u01b0\u1ee3u, n\u01b0\u1edbc h\u1ed3 ao, n\u01b0\u1edbc kho\u00e1ng ","C. \u0110\u01b0\u1eddng, mu\u1ed1i \u0103n, n\u01b0\u1edbc c\u1ea5t, d\u1ea7u \u0103n ","D. N\u01b0\u1edbc bi\u1ec3n, n\u01b0\u1edbc kho\u00e1ng, n\u01b0\u1edbc c\u1ea5t, n\u01b0\u1edbc gi\u1ebfng "],"hint":"","explain":"<span class='basic_left'>Ch\u1ea5t kh\u00f4ng tinh khi\u1ebft l\u00e0 ch\u1ea5t c\u00f3 l\u1ea7n th\u00eam m\u1ed9t s\u1ed1 t\u1ea1p ch\u1ea5t kh\u00e1c<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":1987},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"Kh\u1ed1i l\u01b0\u1ee3ng b\u1eb1ng \u0111\u01a1n v\u1ecb cacbon l\u1ea7n l\u01b0\u1ee3t c\u1ee7a 8K, 12S, 15P l\u00e0 ","select":["A. 465 \u0111vC, 312 \u0111vC, 384 \u0111vC ","B. 312 \u0111vC, 384 \u0111vC, 465 \u0111vC ","C. 321 \u0111vC, 348 \u0111vC, 456 \u0111vC ","D. 450 \u0111vC, 310 \u0111vC, 210 \u0111vC "],"hint":"","explain":"<span class='basic_left'>Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 8 nguy\u00ean t\u1eed Kali b\u1eb1ng ${{M}_{K}}=8.39=312$ \u0111vC<br\/>Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 12 nguy\u00ean t\u1eed l\u01b0u hu\u1ef3nh b\u1eb1ng ${{M}_{S}}=12.32=384$ \u0111vC<br\/>Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 15 nguy\u00ean t\u1eed Photpho b\u1eb1ng ${{M}_{P}}=15.31=465$ \u0111vC<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":1988},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"C\u1ed3n ( r\u01b0\u1ee3u etylic) l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng, c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i ${{t}_{s}}={{78,3}^{o}}C$ v\u00e0 tan nhi\u1ec1u trong n\u01b0\u1edbc. \u0110\u1ec3 t\u00e1ch ri\u00eang h\u1ed7n h\u1ee3p c\u1ed3n v\u00e0 n\u01b0\u1edbc ta s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0o sau \u0111\u00e2y. ","select":["A. L\u1ecdc ","B. Chi\u1ebft ","C. Ch\u1ee9ng c\u1ea5t \u1edf ${{t}_{s}}={{80}^{o}}C$ ","D. Bay h\u01a1i "],"hint":"","explain":"<span class='basic_left'>Ch\u01b0ng c\u1ea5t l\u00e0 qu\u00e1 tr\u00ecnh d\u00f9ng nhi\u1ec7t \u0111\u1ec3 t\u00e1ch h\u1ed7n h\u1ee3p c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i ch\u00eanh l\u1ec7ch nhau. Qu\u00e1 tr\u00ecnh \u0111un n\u00f3ng h\u1ed7n h\u1ee3p c\u1ed3n v\u00e0 n\u01b0\u1edbc \u0111\u1ebfn kho\u1ea3ng ${{80}^{o}}C$. C\u1ed3n c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i th\u1ea5p h\u01a1n s\u1ebd bay h\u01a1i tr\u01b0\u1edbc. H\u01a1i c\u1ed3n \u0111\u01b0\u1ee3c d\u1eabn qua \u1ed1ng l\u00e0m l\u1ea1nh s\u1ebd ng\u01b0ng t\u1ee5 th\u00e0nh nh\u1eefng gi\u1ecdt c\u1ed3n l\u1ecfng. Gi\u1eef cho nhi\u1ec7t \u0111\u1ed9 \u1edf tr\u00ean ${{80}^{o}}C$ m\u1ed9t ho\u1eb7c hai \u0111\u1ed9 \u0111\u1ebfn khi kh\u00f4ng c\u00f2n h\u01a1i c\u1ed3n th\u00ec d\u1eebng l\u1ea1i <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":1989}],"lesson":{"save":0,"level":2}}