广东省深圳市2018年中考化学真题试题(含答案)
广东省深圳市2018年中考化学真题试题可能用到的相对原子质量:H-1C-12O-16Ca-40Cl-35.5一.选择题(共10小题,每小题1.5分,共15分,在每小题给出的4个选项中,只有一项是符合题目要求的。)1.下列化学用语表达正确的是()A.三个钡离子:3Ba2+B.两个氧原子:O2C.四个硫酸根离子:4SO32-D.五个一氧化碳分子:5Co2.6月5日是世界环境日,2018年我国的主题是“美丽中国,我是行动者”。下列做法错误的是()A.减少使用不必要的塑料制品,如用布袋代替塑料袋B.节约用水提高水的使用效益,如用洗过菜的水浇花C.养成将垃圾分类处理的习惯,如废旧报纸回收利用D.过度施用...
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