2017年四川省绵阳市中考化学试卷(学生版)
2017年四川省绵阳市中考化学试卷一、选择题(每小题3分,每个小题只有一个选项最符合题目要求)1.(3分)化学与生活密切相关.下列说法正确的是( )A.合成纤维、塑料、棉花都属于合成有机高分子材料B.用肥皂水可鉴别硬水和软水;用明矾净水即得软水C.福尔马林能杀菌消毒,干冰可作制冷剂,都可用于对食品保鲜D.碳酸氢钠俗称小苏打,是焙制糕点所用的发酵粉的主要成分之一2.(3分)“分类”可以使人们有序地研究物质。以下分类正确的是( )A.碱:苛性钠、纯碱、熟石灰B.合金:硬铝、青铜、18K金C.酸:硝酸、硫酸、碳酸氢钠D.糖类:蔗糖、纤维素、蛋白质3.(3分)铜在电气工业中有非常重要的用途。结合图...
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