hsg hóa 10 năm 2012 2013 tỉnh vĩnh phúc

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hsg hóa  10 năm 2012 2013 tỉnh vĩnh phúc

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Sở GD&ĐT Vĩnh Phúc  ĐỀ THI HỌC SINH GIỎI LỚP 10 NĂM HỌC 2013 – 2014 MÔN THI: HÓA HỌC Dành cho học sinh THPT Chuyên Thời gian làm bài 180 phút không kể thời gian giao đề Câu 1: (2 điểm) 1.   !"#$%#&'##( )"*+,- ./012121345 6/412121345 7/41891345 :/18821345 ;/<8891345 =/042191345 2. 7##>&'-?= 0 @AB= 0 @6= 0 @"C7 0 @B 0 DEF'G#"&"#&H&'IF '> J KL'M#N##OH&#>FD 3. 67 0 #PQ# !"EC 0 G&67 0 EC 0 DRL'GH&EC 0  J67 0 #SI"*"#T#( #N##J##>67 0 EC 0 D 4. 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\A  94A⇒A\/A # ‚A  534D ⇒U#%"X"P 0 4 /7C 5 B A \A  ‚A\  # 0DA 2A 4 D 'I&q#%"X"P-  ˆ\8#N 0 4 /7C 5 B A \<88C  ˆ\1gg8#N 0 4 /7C 5 B A \488C  ˆ\0188#N 0 4 /7C 5 B A \188C  ˆ\<vg8#N 0 4 /7C 5 B A \g8C jN#"YXZ J#PT#VN#Q#kX`"F'LdY !"Q#TD&#w #LI&'1gg8">I#N/7C 0 5 4 B"*X"Z&D:X#* #>#HI/7C 0 5 4 BJ#*Vw1 !" 134 \1gg8D V5CfXZH&#*J-Q\43 134 \8v…031gg8\4,47.10 -4 s -1 D 5&- A  \A  D 2Q \<88D < <<tD18 D<v8  − − \04gt/C5 ⇒A\A  ‚A  \<88‚04gt\t<0/C5 ⇒‰'LH&#Y&'<v8">IJ-A # \A  94A\<8894Dt<0\g<]v/ C5 A#,)/7C 0 5 4 BVh#>#'b\ t<0 <88 D188y\18,58 % 8g 84g 84g 8g Câu 4 (2,0) 1D&5C"X"H&Q"G"pVh#>#HIQ#"X'##N#- 4p/BC5/5†p 4 B/59C4B/Q5 E'"#'XQ#kVe#N"#*I&14Q#*)&'- 2_#*)1-B"Vh#>#HIG&" J*#oJQ"G""#& #L# p 4 B  †p 4 B  9/2534B 4 ↑ 2_#*)4-B"#* !"#"!J)"#&H&Q"G"- p 4 B9/25C4B†p 4 B9/25C4 U<88_ J1&!qG#"#"+X#i#x#PmB 4  JC 4 B #•mC 4  JC 4 BD #"*#"-_#"'VN#H&#i#x\01tD<\14v] &3†#i#xmC 4  JC 4 BDƒO"yH&C 4 xJ& #N#- 4&91]/1882&5\14v]D188†&\0000† dYH&C 4  JC 4 BJ1-4D V5•k#H&aJpBI#"*#"- 1vI3p\4tv3/18824tv5†p\48…]gD/4I35 !"/4I35\14]300DDD 4I314]300<DDD p48…]g<1…t1gg…vv4…gv]0…<4DDD †p\gg…vŠgvJ= Jk#H&"J= 0 B < D 1X 7k#H&#*"J=/BC54D A#*-0=/BC5 4 →4= 0 B < 9C 4 B9C 4 2.#"*#"- C B  C B  0v4 gt0] 1<0]  - - \ - - \0g…-0g…-8<<]  - - \]-]-1 188] 1v 048v → jwIk#X"*#LH&AJX(H 8 O 8 S) n . y XA \188y2/0v49gt0]91<0]5y\4<v4y j!"\1 → p X \g<…g/35 → XJp&&/p5D j!"\4 → p X \18……/35 → _#kQ"G"#}&SD j!" ≥ 0 → p X  ≥ 1v<…/35 → X#'Z#Ol&&#•#G/loại5D jwIk#X"*#LH&AJMnH 8 O 8 SD p•Q# X #* !"+'+h#6&7 4  G#J#QH&Q#k& +'+h#C7JA1'IF+XAJ'"'‹&#• '"#"X'‹&-MnH 8 O 4 SO 4 D _#"X'/A chưa bị phân hủy5044yQ#"ALX"X p A \4408t</35†044yDp A \044yD4408t<\t1]/5Št4/5 †<C 4 BD †yC/trong 4 mol H 2 O5\ 188]D] D 188 0v1y 0v4y 4408t< = ≈ D jwIAJ'"&&/??5'‹&w<#>!-MnSO 4 .4H 2 O ACC pB < 96&7 4  → 6&B < Œ9p7 4 /15 4pB < 9gAVB 4 9vCEB 0  → 4CpB < 90AV/EB 0 5 4 94AVB < Œ94C 4 B /45 1X Câu 5 (2 đ) 1. G"<t4 8 7_  \ 4 4 0 0 0 4 4 rEC s /8884t45 rC s DrE s /8148t5 D/88<845 = \818g  4   _ _ /•5 818g/88]4D/<t4 4t055 ∆ − → = = + = 4]1D18 2g @ G"g88 8 7_  \ 0 4 4 4 20 4 EC 0 0 C E  /1t0D18 5  D /8t005 D/8g4t5 = \1<<D18 2g •4]1D18 2g DE#"YXZ) _  "* → #*}&#"Y/#'IFTH&l&"5D 2. _#"j"*Z& → mXZ)4, → Ž  \ 4 0 /8884t4D45 /8148tD45 D/88<84D45 \ 4v4D18 24 •_  → 7>Vf##O#'IP+%"&#*"XPŽ  )!"_  D 1X 1X Ghi chú: Thí sinh làm cách khác đúng vẫn cho điểm tối đa. . Sở GD&ĐT Vĩnh Phúc  ĐỀ THI HỌC SINH GIỎI LỚP 10 NĂM HỌC 2013 – 2014 MÔN THI: HÓA HỌC Dành cho học sinh THPT Chuyên Thời gian làm bài 180. và tên thí sinh……………………………………SBD…… …… ~~~DC~~~ Sở GD&ĐT Vĩnh Phúc  HƯỚNG DẪN CHẤM 2013 – 2014 MÔN THI: HÓA HỌC 10 Dành cho học sinh THPT Chuyên Thời gian làm bài 180 phút không. J""Cq'IFJI)H& #d#n#'Z J 19 1 18 n 2 2 2 13,6 13, 6eV.1,602 .10 J.eV 2,18 .10 E eV J n n n − − − = − = − = − 4D_#"1+"#'IPR<+X0)X"*"#-  E∆ ; 0 ‚; < 41]D18 21] / 2

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