2019年广西柳州市中考化学试题(空白卷)
2019年柳州市初中学业水平考试与高中阶段学校招生考试试卷化 学(考试时间90分钟,满分100分)可能用到的相对原子质量:H~1C~12N~14O~16Na~23Mg~24Al27S~32Cl~35.5Ca~40Fe~56Cu~64Zn~65Ba~137第Ⅰ卷(选择题,共40分)一、选择题(本大题共40分。每小题只有一个正确答案,每小题2分)1.常用于登山、潜水、医疗急救的气体是( )A.氮气B.氧气C.二氧化碳D.稀有气体2.下列化学实验基本操作中,正确的是()A.熄灭酒精灯B.滴加液体C.读取液体体积D.闻气体气味3.下列变化中,一定包含有化学变化的是()A.蜡烛燃烧B.水结成冰C.汽油...
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