{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Th\u00e0nh ph\u1ea7n theo th\u1ec3 t\u00edch c\u1ee7a kh\u00f4ng kh\u00ed g\u1ed3m : ","select":["A. $21\\%$ ${{N}_{2}}$, $78\\%$ ${{O}_{2}}$, $1\\%$ kh\u00ed kh\u00e1c ","B. $78\\%$ ${{N}_{2}}$, $22\\%$ ${{O}_{2}}$ ","C. $100\\%$ ${{O}_{2}}$ ","D. $78\\%$ ${{N}_{2}}$, $21\\%$ ${{O}_{2}}$, $1\\%$ kh\u00ed kh\u00e1c "],"hint":"","explain":"<span class='basic_left'>Kh\u00f4ng kh\u00ed l\u00e0 h\u1ed7n h\u1ee3p nhi\u1ec1u ch\u1ea5t kh\u00ed. Th\u00e0nh ph\u1ea7n theo th\u1ec3 t\u00edch c\u1ee7a kh\u00f4ng kh\u00ed l\u00e0 $78\\%$ ${{N}_{2}}$, $21\\%$ ${{O}_{2}}$, $1\\%$ kh\u00ed kh\u00e1c<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2200},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"S\u1ef1 oxi h\u00f3a c\u00f3 t\u1ecfa nhi\u1ec7t nh\u01b0ng kh\u00f4ng ph\u00e1t s\u00e1ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0: ","select":["A. S\u1ef1 ch\u00e1y ","B. S\u1ef1 t\u1ef1 b\u1ed1c ch\u00e1y ","C. S\u1ef1 oxi h\u00f3a ch\u1eadm ","D. S\u1ef1 ch\u00e1y "],"hint":"","explain":"<span class='basic_left'>S\u1ef1 oxi h\u00f3a ch\u1eadm l\u00e0 s\u1ef1 oxi h\u00f3a c\u00f3 t\u1ecfa nhi\u1ec7t nh\u01b0ng kh\u00f4ng ph\u00e1t s\u00e1ng<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2201},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Qu\u00e1 tr\u00ecnh n\u00e0o d\u01b0\u1edbi \u0111\u00e2y l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng oxi trong kh\u00f4ng kh\u00ed? ","select":["A. S\u1ef1 h\u00f4 h\u1ea5p c\u1ee7a \u0111\u1ed9ng v\u1eadt ","B. S\u1ef1 quang h\u1ee3p c\u1ee7a c\u00e2y xanh ","C. S\u1ef1 ch\u00e1y c\u1ee7a than, c\u1ee7i, b\u1ebfp ga ","D. C\u1ea3 $A$ v\u00e0 $C$ "],"hint":"","explain":"<span class='basic_left'>Kh\u00ed oxi c\u1ea7n cho s\u1ef1 h\u00f4 h\u1ea5p \u0111\u1ec3 oxi h\u00f3a ch\u1ea5t dinh d\u01b0\u1ee1ng trong c\u01a1 th\u1ec3 \u0111\u1ed9ng v\u1eadt. S\u1ef1 oxi h\u00f3a n\u00e0y di\u1ec5n ra li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh s\u1ed1ng sinh ra kh\u00ed cacbonic ($C{{O}_{2}}$) v\u00e0 n\u0103ng l\u01b0\u1ee3ng<br\/>$\\to$ S\u1ef1 h\u00f4 h\u1ea5p l\u00e0m gi\u1ea3m kh\u00ed oxi trong kh\u00f4ng kh\u00ed<br\/>Nhi\u1ec7t li\u1ec7u ch\u00e1y \u0111\u01b0\u1ee3c c\u1ea7n c\u00f3 oxi v\u00ec oxi duy tr\u00ec s\u1ef1 ch\u00e1y $\\to$ s\u1ef1 ch\u00e1y l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng oxi trong kh\u00f4ng kh\u00ed<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D .<\/span><\/span> ","column":2}]}],"id_ques":2202},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o sau \u0111\u00e2y di\u1ec5n ra s\u1ef1 oxi h\u00f3a ch\u1eadm? ","select":["A. N\u1ed5 b\u00ecnh gas ","B. C\u00e1c v\u1eadt d\u1ee5ng l\u00e0m b\u1eb1ng s\u1eaft \u0111\u1ec3 ngo\u00e0i kh\u00f4ng kh\u00ed l\u00e2u ng\u00e0y b\u1ecb ph\u1ee7 m\u1ed9t l\u1edbp g\u1ec9 m\u00e0u n\u00e2u \u0111\u1ecf ","C. M\u01b0a c\u00f3 s\u1ea5m s\u00e9t ","D. B\u00f3ng bay b\u1ecb n\u1ed5 "],"hint":"","explain":"<span class='basic_left'>S\u1eaft b\u1ecb g\u1ec9 l\u00e0 do ti\u1ebfp x\u00fac v\u1edbi oxi v\u00e0 n\u01b0\u1edbc ( c\u00f3 trong kh\u00f4ng kh\u00ed \u1ea9m ) th\u00ec x\u1ea3y ra ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. Sau ph\u1ea3n \u1ee9ng n\u00e0y s\u1eaft b\u1ecb bi\u1ebfn \u0111\u1ed5i th\u00e0nh ch\u1ea5t g\u1ec9 m\u00e0u n\u00e2u \u0111\u1ecf.<br\/>S\u1eaft + oxi $\\to $ oxit s\u1eaft ( $F{{e}_{3}}{{O}_{4}}$ )<br\/>$\\to$ qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0 do b\u1ecb oxi h\u00f3a ch\u1eadm trong kh\u00f4ng kh\u00ed<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2203},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y, Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o l\u00e0m gi\u1ea3m kh\u00ed $C{{O}_{2}}$ v\u00e0 sinh ra kh\u00ed ${{O}_{2}}$? H\u00e3y ch\u1ecdn \u0111\u00e1p \u00e1n m\u00e0 em cho l\u00e0 \u0111\u00fang","select":["A. S\u1ef1 quang h\u1ee3p c\u1ee7a c\u00e2y xanh ","B. Ch\u00e1y r\u1eebng ","C. M\u01b0a axit ","D. N\u00fai l\u1eeda phun tr\u00e0o "],"hint":"","explain":"<span class='basic_left'>Quang h\u1ee3p \u1edf c\u00e2y xanh l\u00e0 qu\u00e1 tr\u00ecnh do n\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi \u0111\u01b0\u1ee3c di\u1ec7p l\u1ee5c h\u1ea5p th\u1ee5 \u0111\u1ec3 t\u1ed5ng h\u1ee3p cacbohi\u0111rat v\u00e0 gi\u1ea3i ph\u00f3ng oxi t\u1eeb kh\u00ed cacbonic v\u00e0 n\u01b0\u1edbc<br\/>Kh\u00ed cacbon \u0111ioxit + n\u01b0\u1edbc $\\to $ glucoz\u01a1 + kh\u00ed oxi<br\/>Nh\u1edd c\u00f3 ph\u1ea3n \u1ee9ng n\u00e0y m\u00e0 kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c trong l\u00e0nh, do ch\u1ea5t c\u00f3 h\u1ea1i l\u00e0 kh\u00ed cacbon \u0111ioxit gi\u1ea3m \u0111i, ch\u1ea5t c\u1ea7n thi\u1ebft cho s\u1ef1 h\u00f4 h\u1ea5p l\u00e0 kh\u00ed oxi t\u0103ng l\u00ean<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2204},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Khi th\u1ed5i kh\u00f4ng kh\u00ed v\u00e0o c\u1ed1c \u0111\u1ef1ng dung d\u1ecbch n\u01b0\u1edbc v\u00f4i trong, th\u1ea5y xu\u1ea5t hi\u1ec7n m\u00e0ng tr\u1eafng m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t c\u1ed1c. Kh\u00ed n\u00e0o sau \u0111\u00e2y g\u00e2y n\u00ean hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3? ","select":["A. ${{O}_{2}}$ ","B. $C{{O}_{2}}$ ","C. ${{H}_{2}}$ ","D. ${{N}_{2}}$ "],"hint":"","explain":"<span class='basic_left'>PTHH : $C{{O}_{2}}+Ca{{(OH)}_{2}}\\to CaC{{O}_{3}}\\downarrow +{{H}_{2}}O$<br\/>M\u00e0ng tr\u1eafng m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t ch\u00ednh l\u00e0 $CaC{{O}_{3}}$<br\/>Ch\u1ee9ng t\u1ecf trong kh\u00f4ng kh\u00ed c\u00f3 s\u1eb5n $C{{O}_{2}}$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2205},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u0110i\u1ec1u ki\u1ec7n ph\u00e1t sinh s\u1ef1 ch\u00e1y l\u00e0 ","select":["A. Ch\u1ea5t ph\u1ea3i n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ch\u00e1y ","B. Cung c\u1ea5p \u0111\u1ee7 kh\u00ed oxi cho s\u1ef1 ch\u00e1y ","C. Cung c\u1ea5p kh\u00ed nit\u01a1 ","D. C\u1ea3 $A$ v\u00e0 $B$ "],"hint":"","explain":"<span class='basic_left'>S\u1ef1 ch\u00e1y l\u00e0 s\u1ef1 oxi h\u00f3a c\u00f3 t\u1ecfa nhi\u1ec7t v\u00e0 ph\u00e1t s\u00e1ng. \u0110i\u1ec1u ki\u1ec7n ph\u00e1t sinh s\u1ef1 ch\u00e1y l\u00e0 ch\u1ea5t ph\u1ea3i n\u00f3ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ch\u00e1y v\u00e0 ph\u1ea3i c\u00f3 \u0111\u1ee7 kh\u00ed oxi cho s\u1ef1 ch\u00e1y<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2206},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"D\u00f9ng h\u1ebft $5$ kg than ( $90\\%C$ v\u00e0 $10\\%$ t\u1ea1p ch\u1ea5t kh\u00f4ng ch\u00e1y ) \u0111\u1ec3 \u0111un n\u1ea5u. Bi\u1ebft oxi chi\u1ebfm $20\\%$ th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed. Th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed \u1edf \u0111ktc \u0111\u00e3 d\u00f9ng l\u00e0 ","select":["A. $42000$ l\u00edt ","B. $4000$ l\u00edt ","C. $4200$ l\u00edt ","D. $45000$ l\u00edt "],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed5i 5 kg = 5000 gam<br\/>Do trong than ch\u1ec9 ch\u1ee9a $90\\%C$ n\u00ean kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c t\u1ebf c\u1ee7a cacbon l\u00e0<br\/>${{m}_{C}}=\\dfrac{5000.90}{100}=4500(g)\\Rightarrow {{n}_{C}}=\\dfrac{4500}{12}=375(mol)$<br\/>PTHH : $C+{{O}_{2}}\\xrightarrow{{{t}^{o}}}C{{O}_{2}}$<br\/>Theo ph\u01b0\u01a1ng tr\u00ecnh : ${{n}_{{{O}_{2}}}}={{n}_{C}}=375(mol)$<br\/>Theo \u0111\u1ec1 b\u00e0i oxi chi\u1ebfm $20\\%$ th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed<br\/>$\\to {{V}_{kk}}=375.22,4.\\dfrac{100}{20}=42000(l)$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2207},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"M\u1ed9t h\u1ed7n h\u1ee3p g\u1ed3m $3,2$ gam ${{O}_{2}}$ v\u00e0 $8,8$ gam $C{{O}_{2}}$. Ph\u1ea7n tr\u0103m th\u1ec3 t\u00edch c\u1ee7a kh\u00ed ${{O}_{2}}$ trong h\u1ed7n h\u1ee3p l\u00e0","select":["A. $66,67\\%$ ","B. $40\\%$ ","C. $33,33\\%$ ","D. $60\\%$ "],"hint":"","explain":"<span class='basic_left'>Theo \u0111\u1ec1 b\u00e0i ta c\u00f3 :<br\/>$\\left\\{ \\begin{aligned} & {{n}_{{{O}_{2}}}}=\\dfrac{3,2}{32}=0,1(mol) \\\\ & {{n}_{C{{O}_{2}}}}=\\dfrac{8,8}{44}=0,2(mol) \\\\ \\end{aligned} \\right.$<br\/>Ph\u1ea7n tr\u0103m th\u1ec3 t\u00edch c\u0169ng ch\u00ednh l\u00e0 ph\u1ea7n tr\u0103m s\u1ed1 mol<br\/>$\\to \\%{{V}_{{{O}_{2}}}}=\\dfrac{0,1}{0,1+0,2}.100\\%=33,33\\%$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2208},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u0110i\u1ec3m gi\u1ed1ng nhau gi\u1eefa s\u1ef1 ch\u00e1y v\u00e0 s\u1ef1 oxi h\u00f3a ch\u1eadm l\u00e0 ","select":["A. S\u1ef1 oxi h\u00f3a, c\u00f3 t\u1ecfa nhi\u1ec7t ","B. Kh\u00f4ng ph\u00e1t s\u00e1ng ","C. C\u00f3 ph\u00e1t s\u00e1ng ","D. S\u1ef1 kh\u1eed "],"hint":"","explain":"<span class='basic_left'>S\u1ef1 ch\u00e1y l\u00e0 s\u1ef1 oxi h\u00f3a c\u00f3 t\u1ecfa nhi\u1ec7t v\u00e0 ph\u00e1t s\u00e1ng<br\/>S\u1ef1 oxi h\u00f3a ch\u1eadm l\u00e0 s\u1ef1 oxi h\u00f3a c\u00f3 t\u1ecfa nhi\u1ec7t v\u00e0 kh\u00f4ng ph\u00e1t s\u00e1ng<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2209},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Trong c\u00e1c bi\u1ec7n ph\u00e1p d\u01b0\u1edbi \u0111\u00e2y, bi\u1ec7n ph\u00e1p n\u00e0o c\u1ea7n th\u1ef1c hi\u1ec7n \u0111\u1ec3 d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y: ","select":["A. Th\u1ed5i kh\u00f4ng kh\u00ed \u1ea9m v\u00e0o \u0111\u00e1m ch\u00e1y ","B. H\u1ea1 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ch\u1ea5t ch\u00e1y xu\u1ed1ng d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 ch\u00e1y ","C. C\u00e1ch li ch\u1ea5t ch\u00e1y v\u1edbi oxi ","D. C\u1ea3 $B$ v\u00e0 $C$ "],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n d\u1eadp t\u1eaft s\u1ef1 ch\u00e1y, c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t hay \u0111\u1ed3ng th\u1eddi c\u1ea3 hai bi\u1ec7n ph\u00e1p sau:<br\/>+ H\u1ea1 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ch\u1ea5t ch\u00e1y xu\u1ed1ng d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 ch\u00e1y<br\/>+ C\u00e1ch li ch\u1ea5t ch\u00e1y v\u1edbi oxi<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2210},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Mu\u1ed1n d\u1eadp t\u1eaft ng\u1ecdn l\u1eeda tr\u00ean ng\u01b0\u1eddi ho\u1eb7c ng\u1ecdn l\u1eeda do x\u0103ng d\u1ea7u ch\u00e1y, ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng c\u00e1ch n\u00e0o trong c\u00e1c c\u00e1ch d\u01b0\u1edbi \u0111\u00e2y? ","select":["A. Tr\u00f9m l\u1edbp v\u1ea3i d\u00e0y l\u00ean ng\u1ecdn l\u1eeda ","B. \u0110\u1ed5 n\u01b0\u1edbc l\u00ean ng\u1ecdn l\u1eeda ","C. Ph\u1ee7 c\u00e1t l\u00ean ng\u1ecdn l\u1eeda ","D. C\u1ea3 $A$ v\u00e0 $C$ "],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n d\u1eadp t\u1eaft ng\u1ecdn l\u1eeda tr\u00ean ng\u01b0\u1eddi ho\u1eb7c ng\u1ecdn l\u1eeda do x\u0103ng d\u1ea7u ch\u00e1y, ng\u01b0\u1eddi ta th\u01b0\u1eddng tr\u00f9m v\u1ea3i ho\u1eb7c ph\u1ee7 c\u00e1t l\u00ean ng\u1ecdn l\u1eeda, m\u00e0 kh\u00f4ng d\u00f9ng n\u01b0\u1edbc. Nguy\u00ean nh\u00e2n l\u00e0 v\u00ec x\u0103ng d\u1ea7u nh\u1eb9 h\u01a1n n\u01b0\u1edbc, n\u00ean khi x\u0103ng d\u1ea7u ch\u00e1y n\u1ebfu ta d\u1eadp b\u1eb1ng n\u01b0\u1edbc th\u00ec n\u00f3 s\u1ebd lan t\u1ecfa n\u1ed5i tr\u00ean m\u1eb7t n\u01b0\u1edbc khi\u1ebfn \u0111\u00e1m ch\u00e1y c\u00f2n lan r\u1ed9ng l\u1edbn v\u00e0 kh\u00f3 d\u1eadp t\u1eaft h\u01a1n. Do \u0111\u00f3 khi ng\u1ecdn l\u1eeda do x\u0103ng d\u1ea7u ch\u00e1y ng\u01b0\u1eddi ta hay th\u01b0\u1eddng d\u00f9ng v\u1ea3i d\u00e0y tr\u00f9m ho\u1eb7c ph\u1ee7 c\u00e1t l\u00ean ng\u1ecdn l\u1eeda \u0111\u1ec3 c\u00e1ch li ng\u1ecdn l\u1eeda v\u1edbi oxi<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2211},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho \u0111\u1ed3ng nung n\u00f3ng v\u1edbi kh\u00f4ng kh\u00ed trong thi\u1ebft b\u1ecb k\u00edn, x\u1ea3y ra ph\u1ea3n \u1ee9ng oxi h\u00f3a \u0111\u1ed3ng th\u00e0nh \u0111\u1ed3ng $II$ oxit. ph\u1ea3n \u1ee9ng xong ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c $320$ $c{{m}^{3}}$ kh\u00ed nit\u01a1. Th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed trong thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi x\u1ea3y ra ph\u1ea3n \u1ee9ng l\u00e0 ( bi\u1ebft nit\u01a1 chi\u1ebfm $80\\%$ th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed ) ","select":["A. $400$ $c{{m}^{3}}$ ","B. $200$ $c{{m}^{3}}$ ","C. $300$ $c{{m}^{3}}$ ","D. $500$ $c{{m}^{3}}$ "],"hint":"","explain":"<span class='basic_left'>Theo \u0111\u1ec1 b\u00e0i ta c\u00f3 nit\u01a1 chi\u1ebfm $80\\%$ th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed<br\/>C\u1ee9 80 $c{{m}^{3}}$ kh\u00ed nit\u01a1 c\u00f3 trong 100 $c{{m}^{3}}$ kh\u00f4ng kh\u00ed<br\/>V\u1eady $320$ $c{{m}^{3}}$ kh\u00ed nit\u01a1 c\u00f3 trong V $c{{m}^{3}}$ kh\u00f4ng kh\u00ed <br\/>$\\to V=\\dfrac{100.320}{80}=400(c{{m}^{3}})$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2212},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Th\u1ec3 t\u00edch kh\u00ed oxi c\u1ea7n d\u00f9ng \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n : 1 kg than t\u1ed5 ong ch\u1ee9a $60\\%$ cacbon, $0,8\\%$ l\u01b0u hu\u1ef3nh v\u00e0 ph\u1ea7n c\u00f2n l\u1ea1i l\u00e0 t\u1ea1p ch\u1ea5t kh\u00f4ng ch\u00e1y l\u00e0 ","select":["A. $1135,6$ l\u00edt ","B. $1225,6$ l\u00edt ","C. $1125,6$ l\u00edt ","D. $1425,6$ l\u00edt "],"hint":"","explain":"<span class='basic_left'>Theo b\u00e0i ra ta c\u00f3 : <br\/>$\\begin{aligned} & {{m}_{C}}=\\dfrac{1.1000.60}{100}=600(g)\\Rightarrow {{n}_{C}}=\\dfrac{600}{12}=50(mol) \\\\ & {{m}_{S}}=\\dfrac{1.1000.0,8}{100}=8\\left( g \\right)\\Rightarrow {{n}_{S}}=\\dfrac{8}{32}=0,25(mol) \\\\ \\end{aligned}$<br\/>PTHH :<br\/>$\\begin{aligned} & C+{{O}_{2}}\\xrightarrow{{{t}^{o}}}C{{O}_{2}}(1) \\\\ & S+{{O}_{2}}\\xrightarrow{{{t}^{o}}}S{{O}_{2}}(2) \\\\ \\end{aligned}$<br\/>T\u1ed5ng s\u1ed1 mol c\u1ee7a oxi \u1edf c\u1ea3 hai ph\u1ea3n \u1ee9ng (1) v\u00e0 (2) l\u00e0 <br\/>$\\begin{aligned} & {{n}_{{{O}_{2}}}}={{n}_{C}}+{{n}_{S}}=50+0,25=50,25(mol) \\\\ & \\to {{V}_{{{O}_{2}}}}=50,25.22,4=1125,6(l) \\\\ \\end{aligned}$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2213},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u0110\u1ec3 b\u1ea3o v\u1ec7 kh\u00f4ng kh\u00ed ch\u00fang ta n\u00ean l\u00e0m g\u00ec ? ","select":["A. Ch\u1eb7t c\u00e2y x\u00e2y c\u1ea7u cao t\u1ed1c ","B. Tr\u1ed3ng nhi\u1ec1u c\u00e2y xanh ","C. \u0110\u1ed5 ch\u1ea5t th\u1ea3i ch\u01b0a qua x\u1eed l\u00ed ra m\u00f4i tr\u01b0\u1eddng ","D. X\u00e2y th\u00eam nhi\u1ec1u khu c\u00f4ng nghi\u1ec7p "],"hint":"","explain":"<span class='basic_left'>Quang h\u1ee3p \u1edf c\u00e2y xanh l\u00e0 qu\u00e1 tr\u00ecnh do n\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi \u0111\u01b0\u1ee3c di\u1ec7p l\u1ee5c h\u1ea5p th\u1ee5 \u0111\u1ec3 t\u1ed5ng h\u1ee3p cacbohi\u0111rat v\u00e0 gi\u1ea3i ph\u00f3ng oxi t\u1eeb kh\u00ed cacbonic v\u00e0 n\u01b0\u1edbc<br\/>Kh\u00ed cacbon \u0111ioxit + n\u01b0\u1edbc $\\to $ glucoz\u01a1 + kh\u00ed oxi<br\/>Nh\u1edd c\u00f3 ph\u1ea3n \u1ee9ng n\u00e0y m\u00e0 kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c trong l\u00e0nh, do ch\u1ea5t c\u00f3 h\u1ea1i l\u00e0 kh\u00ed cacbon \u0111ioxit gi\u1ea3m \u0111i, ch\u1ea5t c\u1ea7n thi\u1ebft cho s\u1ef1 h\u00f4 h\u1ea5p l\u00e0 kh\u00ed oxi t\u0103ng l\u00ean.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2214},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Qu\u00e1 tr\u00ecnh quang h\u1ee3p c\u1ee7a c\u00e2y xanh \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc sau : $6C{{O}_{2}}+6{{H}_{2}}O\\to {{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}$. N\u1ebfu m\u1ed9t ng\u00e0y c\u00e2y xanh h\u1ea5p th\u1ee5 $88$ kg kh\u00ed $C{{O}_{2}}$ th\u00ec th\u1ec3 t\u00edch kh\u00ed oxi ( \u1edf \u0111ktc ) cung c\u1ea5p cho m\u00f4i tr\u01b0\u1eddng l\u00e0 bao nhi\u00eau ? ","select":["A. $44800$ l\u00edt ","B. $4480$ l\u00edt ","C. $22400$ l\u00edt ","D. $44000$ l\u00edt "],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed5i 88 kg = 88000 gam<br\/>${{n}_{C{{O}_{2}}}}=\\dfrac{88000}{44}=2000(mol)$<br\/>Theo ph\u01b0\u01a1ng tr\u00ecnh : <br\/>$\\begin{aligned} & {{n}_{{{O}_{2}}}}={{n}_{C{{O}_{2}}}}=2000(mol) \\\\ & \\to {{V}_{{{O}_{2}}}}=2000.22,4=44800(l) \\\\ \\end{aligned}$<br\/><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2215},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Qu\u00e1 tr\u00ecnh l\u00ean men glucoz\u01a1 \u0111\u1ec3 s\u1ea3n xu\u1ea5t r\u01b0\u1ee3u etylic \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n theo ph\u01b0\u01a1ng trinh h\u00f3a h\u1ecdc sau: ${{C}_{6}}{{H}_{12}}{{O}_{6}}\\to 2{{C}_{2}}{{H}_{5}}OH+2C{{O}_{2}}$. N\u1ebfu l\u00ean men $2160$ gam glucoz\u01a1 th\u00ec th\u1ec3 t\u00edch kh\u00ed $C{{O}_{2}}$ \u1edf \u0111ktc th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng l\u00e0 bao nhi\u00eau ?","select":["A. $637,6$ l\u00edt ","B. $737,6$ l\u00edt ","C. $537,6$ l\u00edt ","D. $837,6$ l\u00edt "],"hint":"","explain":"<span class='basic_left'>${{n}_{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}=\\dfrac{2160}{180}=12(mol)$<br\/>Theo ph\u01b0\u01a1ng tr\u00ecnh : <br\/>$\\begin{aligned} & {{n}_{C{{O}_{2}}}}=2{{n}_{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}=2.12=24(mol) \\\\ & \\to {{V}_{C{{O}_{2}}}}=24.22,4=537,6(l) \\\\ \\end{aligned}$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2216},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"M\u1ed9t thanh kim lo\u1ea1i $R$ h\u00f3a tr\u1ecb $III$ c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng $2,16$ (gam) \u0111\u1ec3 ngo\u00e0i kh\u00f4ng kh\u00ed sau m\u1ed9t th\u1eddi gian kh\u1ed1i l\u01b0\u1ee3ng kim lo\u1ea1i t\u0103ng $1,92$ gam. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i $R$ l\u00e0 ","select":["A. $Fe$ ","B. $Al$ ","C. $Cu$ ","D. $Pb$ "],"hint":"","explain":"<span class='basic_left'>Thanh kim lo\u1ea1i \u0111\u00e3 b\u1ecb oxi h\u00f3a b\u1edfi oxi trong kh\u00f4ng kh\u00ed<br\/>$\\to$ Kh\u1ed1i l\u01b0\u1ee3ng thanh kim lo\u1ea1i t\u0103ng ch\u00ednh l\u00e0 l\u01b0\u1ee3ng oxi ph\u1ea3n \u1ee9ng<br\/>$\\begin{aligned} & \\to {{m}_{{{O}_{2}}}}=1,92(g) \\\\ & \\to {{n}_{{{O}_{2}}}}=\\frac{1,92}{32}=0,06(mol) \\\\ \\end{aligned}$<br\/>PTHH : $4R+3{{O}_{2}}\\to 2{{R}_{2}}{{O}_{3}}$<br\/>Theo ph\u01b0\u01a1ng tr\u00ecnh : <br\/>$\\begin{aligned} & {{n}_{R}}=\\frac{4}{3}{{n}_{{{O}_{2}}}}=0,08(mol) \\\\ & \\to {{M}_{R}}=\\frac{2,16}{0,08}=27 \\\\ \\end{aligned}$<br\/>V\u1eady R l\u00e0 nh\u00f4m (Al)<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2217},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"M\u1ed9t ph\u00f2ng h\u1ecdc c\u00f3 chi\u1ec1u d\u00e0i 12 m, chi\u1ec1u r\u1ed9ng 8 m, chi\u1ec1u cao 4 m. Th\u1ec3 t\u00edch c\u1ee7a kh\u00f4ng kh\u00ed c\u00f3 trong ph\u00f2ng l\u00e0 ","select":["A. $336({{m}^{3}})$ ","B. $384({{m}^{3}})$ ","C. $484({{m}^{3}})$ ","D. $500({{m}^{3}})$ "],"hint":"","explain":"<span class='basic_left'>\u0110\u00e2y l\u00e0 m\u1ed9t ph\u00f2ng h\u1ecdc c\u00f3 d\u1ea1ng h\u00ecnh h\u1ed9p ch\u1eef nh\u1eadt<br\/>Th\u1ec3 t\u00edch c\u1ee7a kh\u00f4ng kh\u00ed c\u0169ng ch\u00ednh l\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh h\u1ed9p ch\u1eef nh\u1eadt<br\/>$\\to {{V}_{kk}}=12.8.4=384({{m}^{3}})$<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2218},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"M\u1ed9t ph\u00f2ng h\u1ecdc c\u00f3 chi\u1ec1u d\u00e0i 12 m, chi\u1ec1u r\u1ed9ng 8 m, chi\u1ec1u cao 4 m. Trong ph\u00f2ng c\u00f3 46 em h\u1ecdc sinh, th\u1ec3 t\u00edch kh\u00ed $C{{O}_{2}}$ th\u1edf ra trong 1 gi\u1edd, bi\u1ebft r\u1eb1ng m\u1ed9t h\u1ecdc sinh th\u1edf ra 2 l\u00edt kh\u00ed m\u1ed9t l\u1ea7n ( th\u1ec3 t\u00edch $C{{O}_{2}}$ chi\u1ebfm 4% ), m\u1ed9t ph\u00fat th\u1edf ra kho\u1ea3ng 16 l\u1ea7n. ","select":["A. $4532,8$ l\u00edt ","B. $5532,8$ l\u00edt ","C. $3532,8$ l\u00edt ","D. $6532,8$ l\u00edt "],"hint":"","explain":"<span class='basic_left'>Bi\u1ebft kh\u00ed $C{{O}_{2}}$ chi\u1ebfm 4% m\u1ed7i l\u1ea7n th\u1edf ra.<br\/>$\\to$ Th\u1ec3 t\u00edch kh\u00ed $C{{O}_{2}}$ th\u1edf ra trong 1 ph\u00fat c\u1ee7a 46 em h\u1ecdc sinh l\u00e0 ${{V}_{C{{O}_{2}}}}=46.2.16.\\dfrac{4}{100}=58,88(l)$<br\/>V\u1eady kh\u00ed $C{{O}_{2}}$ th\u1edf ra trong 1 gi\u1edd c\u1ee7a 46 em h\u1ecdc sinh l\u00e0 $58,88.60=3532,8$ l\u00edt<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2219}],"lesson":{"save":0,"level":2}}