精品解析:2022年贵州省铜仁市中考化学真题(解析版)
【淘宝:中小学教辅资源店微信:mlxt2022】铜仁市2022年初中毕业生学业(升学)统一考试化学试题可能用到的相对原子质量∶H:1C:12O:16Na:23Mg:24S:32Cl:35.5Ca:40Mn:55Fe:56Cu:64Zn:65第I卷一、化学选择题(本题共9小题,每小题2分,共18分。每小题只有一个选项符合题意。)1.下列变化属于化学变化的是A.汽油挥发B.石蜡熔化C.钢铁生锈D.石油分馏【答案】C【解析】【详解】A、汽油挥发过程中只是状态发生改变,没有新物质生成,属于物理变化。B、石蜡熔化过程中只是状态发生改变,没有新物质生成,属于物理变化。C、钢铁生锈过程中有新物质铁锈生成,属...
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