2015年辽宁省沈阳市中考化学试题及答案
沈阳市2015年初中毕业升学统一考试化学试卷可能用到的相对原子质量:H-1C-12O-16Na-23Cl-35.5一、选择题(本题包括13道小题,1~11小题,每题1分,12、13小题,每题2分,共15分。每小题只有一个最符合题目要求的选项。)1.下列变化属于化学变化的是A.汽油的挥发B.酒精的燃烧C.矿石的粉碎D.铁丝的弯曲2.下列符合号表示2个氧原子的是A.2OB.O2C.O2-D.O22-3.下列物质属于化合物的是A.镁B.氧气C.蒸馏水D.金刚石4.下列实验操作不合理的是A.读取液体体积B.熄灭酒精灯C.取用固体粉末D.稀释浓硫酸5.下列各项不属于NaCl用途的是A.做净水剂B.生产烧...
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