广东省普宁市华美实验学校2018_2019学年高一化学上学期期中试题(扫描版).doc

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1 -广东省普宁市华美实验学校 2018-2019 学年高一化学上学期期中试题(扫描版)- 2 - 3 - 4 - 5 -1、选择题1-5:C D B A B 6-10:B C C A D 11-16:D B C B C A17、 (1)混合物(2)1 2Na + 2H2O = 2Na+ + 2OH- + H2;2Al + 2OH- + 2H2O= 2AlO2- + 3H2(3)5 g(4)多 2 Na + H2SO4 = Na2SO4 + H2;2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H218、1)Al 失去2) MnCl2 0.33)219、1)防止暴沸 2)3Fe+4H2O(g) = Fe3O4+4H23) 干燥氢气4)验纯 关闭 K3、打开 K2 在 X 处点燃氢气,挤压矿泉水瓶5)4.4820、D1)K2SO4 Cl+ Ag+= AgCl2)FeCl3AgNO3K2SO43)1:3:2 Fe3+2SO42+2Ba2+3OH=2BaSO4+Fe(OH)3

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