广东省广州市2017年中考化学真题试题(含解析)
秘密★启用前广东省广州市2017年中考化学真题试题本试卷分为选择题和非选择题两部分,共8页,满分100分。考试时间80分钟。可能用到的相对原子质量:H1C12N14O16Na23S32Cl35.5Cu64Zn65第一部分选择题(共40分)一、选择题(本小题包括20小题,每小题2分,共40分)注意:每小题四个选项中只有一个选项符合题意。错选,不选,多选或涂改不清的,均不给分。1.下列事实中,利用物质化学性质的是A.干冰用于人工降雨B.汽油作燃料C.铜作导线D.石墨用于制铅笔【答案】B2.下列关于氧气的说法不正确的是A.O2可以支持燃烧B.O2可用排水法收集C.O2可用于医疗急救D.细铁丝在O2中...
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