2020年辽宁省锦州市中考化学试题(空白卷)
2020年锦州市中考化学试卷理化综合考试时间150分钟化学试卷满分60分※考生注意:请在答题卡各题目规定答题区域内作答,答在本试卷上无效。可能用到的相对原子质量:H-1N-14O-16Na-23S-32Cl-35.5一、选择题(本大题包括10个小题,共12分。1~8小题每题1分,9、10小题,每题2分,每小题只有一个正确选项)1.下列变化不属于化学变化的是A.动物呼吸B.金属生锈C.食物腐烂D.海水晒盐2.下列实验操作正确的是A.熄灭酒精灯B.称量氯化钠C.取用固体粉末D.测溶液pH3.化学在健康、能源、材料、生活等方面有广泛的应用。下列说法正确的是A.装修材料挥发出来的甲醛对人体有害B.化石...
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