{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":10,"ques":" T\u1eeb c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a \u0111\u1ed3ng sunfat $CuS{{O}_{4}}$ cho ta bi\u1ebft \u0111\u01b0\u1ee3c: ","select":["A. C\u00f3 1 nguy\u00ean t\u1eed \u0111\u1ed3ng, 1 nguy\u00ean t\u1eed l\u01b0u hu\u1ef3nh, 4 nguy\u00ean t\u1eed oxi trong 1 ph\u00e2n t\u1eed ","B. C\u00f3 4 nguy\u00ean t\u1eed \u0111\u1ed3ng, 1 nguy\u00ean t\u1eed l\u01b0u hu\u1ef3nh, 1 nguy\u00ean t\u1eed oxi trong 1 ph\u00e2n t\u1eed ","C. C\u00f3 2 nguy\u00ean t\u1eed \u0111\u1ed3ng, 1 nguy\u00ean t\u1eed l\u01b0u hu\u1ef3nh, 1 nguy\u00ean t\u1eed oxi trong 1 ph\u00e2n t\u1eed ","D. C\u00f3 1 nguy\u00ean t\u1eed \u0111\u1ed3ng, 1 nguy\u00ean t\u1eed l\u01b0u hu\u1ef3nh, 1 nguy\u00ean t\u1eed oxi trong 1 ph\u00e2n t\u1eed "],"hint":"","explain":"<span class='basic_left'>\u00fd ngh\u0129a c\u1ee7a c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc cho ta bi\u1ebft s\u1ed1 nguy\u00ean t\u1eed m\u1ed7i nguy\u00ean t\u1ed1 c\u00f3 trong m\u1ed9t ph\u00e2n t\u1eed c\u1ee7a ch\u1ea5t<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":1990},{"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 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc sau \u0111\u1ec1u ch\u1ec9 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a \u0111\u01a1n ch\u1ea5t ","select":["A. $Cu, Ag, {{H}_{2}}, Zn$ ","B. $NaCl, Ag, {{N}_{2}}, HCl$ ","C. $CuO, Ag, {{O}_{2}}, Hg$ ","D. $CaO, NaCl, {{Cl}_{2}}, Zn$ "],"hint":"","explain":"<span class='basic_left'>C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a \u0111\u01a1n ch\u1ea5t ch\u1ec9 g\u1ed3m k\u00ed hi\u1ec7u h\u00f3a h\u1ecdc c\u1ee7a m\u1ed9t nguy\u00ean t\u1ed1 <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":1991},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"Ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a 5 ph\u00e2n t\u1eed Magie cacbonat $MgC{{O}_{3}}$ ","select":["A. 430 ","B. 440 ","C. 420 ","D. 410 "],"hint":"","explain":"<span class='basic_left'>Ta c\u00f3: $PT{{K}_{5MgC{{O}_{3}}}}=5.(24+12+3.16)=420$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":1992},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":"Ph\u00e2n t\u00edch m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng h\u1ee3p ch\u1ea5t M ng\u01b0\u1eddi ta nh\u1eadn th\u1ea5y th\u00e0nh ph\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3 c\u00f3 $50\\%$ l\u00e0 l\u01b0u hu\u1ef3nh v\u00e0 $50\\%$ l\u00e0 oxi. C\u00f4ng th\u1ee9c c\u1ee7a h\u1ee3p ch\u1ea5t M l\u00e0 g\u00ec? ","select":["A. $S{{O}_{4}}$ ","B. $SO$ ","C. $S{{O}_{3}}$ ","D. $S{{O}_{2}}$ "],"hint":"","explain":"<span class='basic_left'>G\u1ecdi c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc t\u1ed5ng qu\u00e1t c\u1ee7a M l\u00e0 ${{S}_{x}}{{O}_{y}}$ <br\/>Ta c\u00f3 t\u1ef7 l\u1ec7 % v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng gi\u1eefa hai nguy\u00ean t\u1ed1 trong h\u1ee3p ch\u1ea5t \u0111\u00fang b\u1eb1ng t\u1ef7 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng gi\u1eefa hai nguy\u00ean t\u1ed1 trong 1 ph\u00e2n t\u1eed<br\/>$\\Rightarrow \\dfrac{x.NT{{K}_{S}}}{y.NT{{K}_{O}}}=\\dfrac{\\%{{m}_{S}}}{\\%{{m}_{O}}}\\Rightarrow \\dfrac{x}{y}=\\dfrac{16.50\\%}{32.50\\%}=\\dfrac{1}{2}$ <br\/> v\u1eady c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a M l\u00e0 $S{{O}_{2}}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":1993},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"M\u1ed9t h\u1ee3p ch\u1ea5t c\u00f3 ph\u00e2n t\u1eed g\u1ed3m 1 nguy\u00ean t\u1eed X li\u00ean k\u1ebft v\u1edbi 3 nguy\u00ean t\u1eed hidro v\u00e0 n\u1eb7ng g\u1ea5p 8,5 l\u1ea7n kh\u00ed hidro. X\u00e1c \u0111\u1ecbnh CTHH c\u1ee7a h\u1ee3p ch\u1ea5t. ","select":["A. ${{C}_{3}}{{H}_{3}}$ ","B. $N{{H}_{3}}$ ","C. ${{C}_{2}}{{H}_{6}}$ ","D. $P{{H}_{3}}$ "],"hint":"","explain":"<span class='basic_left'>Ta c\u00f3 ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a h\u1ee3p ch\u1ea5t l\u00e0: $PTK=8,5{{M}_{{{H}_{2}}}}=8,5.2=17$<br\/>CTHH chung c\u1ee7a h\u1ee3p ch\u1ea5t l\u00e0: $X{{H}_{3}}$<br\/>$PTK={{M}_{X}}+3.{{M}_{H}}\\Leftrightarrow {{M}_{X}}=17-3.1=14$ <br\/>Suy ra X l\u00e0 Nit\u01a1 ( N )<br\/>V\u1eady CTHH c\u1ee7a h\u1ee3p ch\u1ea5t l\u00e0 $N{{H}_{3}}$ <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":1994},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":"T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng b\u1eb1ng gam c\u1ee7a ${{6,02.10}^{23}}$ ph\u00e2n t\u1eed n\u01b0\u1edbc ${{H}_{2}}O$ ","select":["A. 19,99 gam ","B. 18,99 gam","C. 17,99 gam","D. 16,99 gam "],"hint":"","explain":"<span class='basic_left'>Ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a 1 ph\u00e2n t\u1eed $C{{O}_{2}}$ l\u00e0 ${{M}_{{{H}_{2}}O}}=2.1+16=18$ \u0111vC <br\/>M\u00e0 $1dvC={{1,6605.10}^{-24}}$ gam<br\/>Kh\u1ed1i l\u01b0\u1ee3ng b\u1eb1ng gam c\u1ee7a ${{6,02.10}^{23}}$ ph\u00e2n t\u1eed n\u01b0\u1edbc ${{H}_{2}}O$ l\u00e0 $m={{6,02.10}^{23}}{{.18.1,6605.10}^{-24}}=17,99$ gam<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":1995},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"Ph\u00e2n t\u1eed X c\u00f3 ph\u00e2n t\u1eed kh\u1ed1i 80 v\u00e0 \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean t\u1eeb hai nguy\u00ean t\u1ed1 Cu v\u00e0 O. CTHH c\u1ee7a ph\u00e2n t\u1eed X l\u00e0 ","select":["A. $C{{u}_{2}}O$ ","B. $CuO$ ","C. $Cu{{O}_{2}}$ ","D. $Cu{{O}_{4}}$ "],"hint":"","explain":"<span class='basic_left'>G\u1ecdi CTHH chung c\u1ee7a X l\u00e0 $C{{u}_{x}}{{O}_{y}}$<br\/>$\\begin{aligned} & \\Rightarrow PTK=x.{{M}_{Cu}}+y.{{M}_{O}} \\\\ & \\Rightarrow 64x+16y=80 \\\\ \\end{aligned}$<br\/>T\u1eeb ph\u01b0\u01a1ng tr\u00ecnh:<br\/>$\\left\\{ \\begin{aligned} & x=1 \\\\ & y=1 \\\\ \\end{aligned} \\right.$ <br\/> V\u1eady CTHH c\u1ee7a X l\u00e0 $CuO$ <br\/><span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":1996},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":"M\u1ed9t h\u1ee3p ch\u1ea5t c\u00f3 th\u00e0nh ph\u1ea7n ph\u00e2n t\u1eed g\u1ed3m hai nguy\u00ean t\u1ed1 C v\u00e0 O. T\u1ec9 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a C v\u00e0 O l\u00e0 3: 8. Ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a h\u1ee3p ch\u1ea5t l\u00e0 ","select":["A. 18 ","B. 60 ","C. 46 ","D. 44 "],"hint":"","explain":"<span class='basic_left'>G\u1ecdi c\u00f4ng th\u1ee9c c\u1ee7a h\u1ee3p ch\u1ea5t l\u00e0 ${{C}_{x}}{{O}_{y}}$<br\/>$\\dfrac{12x}{16y}=\\dfrac{3}{8}\\Rightarrow \\dfrac{x}{y}=\\dfrac{3.16}{8.12}=\\dfrac{1}{2}$ <br\/>V\u1eady x=1 v\u00e0 y= 2<br\/>CTHH c\u1ee7a h\u1ee3p ch\u1ea5t $C{{O}_{2}}$ <br\/>PTK=12+2.16=44<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":1997},{"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\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc v\u00e0 ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a v\u00f4i s\u1ed1ng, bi\u1ebft trong ph\u00e2n t\u1eed c\u00f3 $1 Ca$ v\u00e0 $1 O$ ","select":["A. $CaO$ v\u00e0 $56$ ","B. $CaO$ v\u00e0 $60$ ","C. $CaO$ v\u00e0 $80$ ","D. $CaO$ v\u00e0 $65$ "],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":1998},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":"K\u00fd hi\u1ec7u h\u00f3a h\u1ecdc c\u1ee7a nh\u1eefng nguy\u00ean t\u1ed1 t\u1ea1o ra ch\u1ea5t k\u00e8m theo ch\u1ec9 s\u1ed1 \u1edf ch\u00e2n, c\u00f3 c\u00f4ng th\u1ee9c d\u1ea1ng chung ${{A}_{x}}{{B}_{y}}$ ho\u1eb7c ${{A}_{x}}{{B}_{y}}{{C}_{z}}$ \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ","select":["A. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc ","B. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a h\u1ee3p ch\u1ea5t ","C. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a \u0111\u01a1n ch\u1ea5t ","D. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a \u0111\u01a1n ch\u1ea5t phi kim "],"hint":"","explain":"<span class='basic_left'>K\u00fd hi\u1ec7u h\u00f3a h\u1ecdc c\u1ee7a nh\u1eefng nguy\u00ean t\u1ed1 t\u1ea1o ra ch\u1ea5t k\u00e8m theo ch\u1ec9 s\u1ed1 \u1edf ch\u00e2n, c\u00f3 c\u00f4ng th\u1ee9c d\u1ea1ng chung ${{A}_{x}}{{B}_{y}}$ ho\u1eb7c ${{A}_{x}}{{B}_{y}}{{C}_{z}}$ \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 CTHH c\u1ee7a h\u1ee3p ch\u1ea5t<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":1999}],"lesson":{"save":0,"level":2}}