安徽省师范大学附属中学2018_2019学年高一化学上学期期中检查试题(扫描版).doc

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1、 1 -安徽省师范大学附属中学 2018-2019 学年高一化学上学期期中检查试题(扫描版)- 2 - 3 - 4 - 5 - 6 - 7 -安师大附中 2018-2019 年高一上学期期中化学答案一、选择题答案题号 1 2 3 4 5 6 7 8 9答案 D C A D A B A C D题号 10 11 12 13 14 15 16 17 18答案 B A C D B C D C B二、非选择题19. (12 分)(1)Fe 3+3H2O(沸水) Fe(OH)3(胶体)+3H +(2 分)(2) (2 分)Ca(OH)2 Ca2+2OH(3) (各 1 分,共 4 分)(4)溶液中有白色

2、沉淀生成;塑料小球沉入水中(2 分) (5) (2 分)20. (9 分)(1)BaCl 2 或 Ba(NO 3)2(1 分);Ag 2CO3 和 BaCO 3 (2 分); (2)HNO 3 (2 分);(3)静置取上层清液继续滴加 AgNO3溶液,若无沉淀则证明 AgNO3溶液过量 (2 分);(4)Ba 2 SO 42 =BaSO4(2 分)。21. (13 分)(1)2.7 mL (2 分) (2)500 mL 容量瓶、胶头滴管 (各 1 分,共 2 分)(3) (各 1 分,共 2 分)(4)定容,沿玻璃棒往容量瓶中加蒸馏水至刻度线 1-2cm 处,改用胶头滴管滴至凹液面与刻度线相切。(3 分)(5)A.b B.c C.b D.a (各 1 分,共 4 分)22. (12 分)(1)Ba 2+ 2OH + CO2 = BaCO3 + H 2O (2 分)(2) 2OH + CO2 = CO32-+ H2O(1 分); CO 32-+ CO2+ H2O = 2HCO3 (1 分)或一步写: OH + CO2 = HCO3 (2 分)(3) BaCO 3+CO2+H2O = Ba2+2HCO3 (2 分)(4) 40(3 分)(5) 2 : 1 (3 分)- 8 -

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