2017年湖南省娄底市中考化学试卷(学生版) 学霸冲冲冲shop348121278.taobao.com
2017年湖南省娄底市中考化学试卷一、选择题1.(2分)2017年5月14日至15日在中国北京举行“一带一路”国际合作高峰论坛。古丝绸之路将我国的发明和技术传送到国外,下列古代生产工艺中主要体现物理变化的是( )A.粮食酿酒B.纺纱织布C.烧制瓷器D.冶炼生铁2.(2分)下列实验操作正确的是( )A.熄灭酒精灯B.滴加液体C.测溶液pHD.蒸发食盐水3.(2分)下列实验现象描述正确的是( )A.二氧化碳通入紫色石蕊溶液中,溶液由紫色变为红色B.铁丝在空气中剧烈燃烧,火星四射,生成四氧化三铁C.涤纶和羊毛点燃时,都可闻到一股烧焦的羽毛气味D.在电解水实验中,与正极、负极相连的玻璃管内收集到...
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