安徽省池州市贵池区2018_2019学年高一化学上学期期中试题(扫描版).doc

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1、 1 -安徽省池州市贵池区 2018-2019 学年高一化学上学期期中试题(扫描版)- 2 - 3 - 4 - 5 - 6 - 7 -贵池区 20182019 学年度第一学期期中教学质量检测高 一 化 学 参 考 答 案一、 选择题(本大题共 18 题,每题 3 分,共 54 分在每小题给出的四个选项中,只有一个选项符合题意)1 2 3 4 5 6 7 8 9B C C A A B D C A10 11 12 13 14 15 16 17 18D C C D B D D D C2、非选择题(本题共 4 道题,共 46 分19.题(12分,每空2分)(1) 2:3 、 1:24 。(2) 0.

2、893g/L 。(3) 25 、减小、不变。20.(12 分)(1)(3 分)(2)烧杯、玻璃棒、250ml 容量瓶、量筒、胶头滴管。 (3 分)(3)27.4(2 分) ;10.0(2 分)(4)(2 分)21.(每空 2 分,共 10 分)(1))Se2HNO 3(浓)= =SeO2NONO 2H 2O(2)H 2SO4(浓)SeO 2SO2(3))SeO 24I 4H +=Se2I 22H 2O 电子得失标注双线桥或单线桥(4)92.5%22.(每空 2 分,共计 12 分 )(1)防止空气中的 CO2 和水气进入 U 型管中 ;(2)偏高 (填“偏高” 、 “偏低”或“不变” ) ;(3)把反应产生的 CO2 全部导入 U 型管中 ; 偏低 (填“偏高” 、 “偏低”或“不变” ) ;(4)判断反应产生的 CO2 是否全部排出,并被 U 型管中的碱石灰吸收 ;(5) 100%

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