天津市宝坻区大口屯高级中学2018_2019学年高一化学下学期期中试题(扫描版).doc

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1、 1 - 2 - 3 - 4 - 5 - 6 - 7 -宝坻区 20182019 学年度第二学期期中检测高一化学参考答案第卷 选择题(本卷共 20 题,每题只有一个正确选项,每小题 3 分,共 60 分)题号 1 2 3 4 5 6 7 8 9 10答案 B A B C B D C D B A题号 11 12 13 14 15 16 17 18 19 20答案 D A C D B C D A A C第卷(本卷共 3 题 共 40 分)21 (13 分)(1)C O (4 分)(2)镁(2 分)(3)SO 3+2NaOH=Na2SO4+H2O,SO 2+2NaOH=Na2SO3+H2O,SO3

2、NaOH=NaHSO4,SO 2+NaOH=NaHSO3(任写一个合理即可) (3 分)(4)Cl 2+H2S=2HCl+ S(合理答案均可) (2 分)(5)CCl 4 或 CH4 (合理答案均可) (2 分)22 (16 分)(1)H H (2 分)ClCl(2 分)32 (2 分)O (2)2H 2O 2=2H2O(2 分)减小(2 分)(3) a6.00, (2 分) b318.2(2 分)可能不变(2 分)23 (11 分)(1)干燥混合气体(2 分)(2)CH 4+Cl2 CH3Cl+HCl(合理均可) (3 分)取代反应(2 分)(3)KI(2 分) (合理即可)(4)a(2 分)光- 8 -

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