2022年辽宁省铁岭市葫芦岛市中考化学真题(原卷版)
2022年铁岭葫芦岛市初中毕业生学业考试化学试卷可能用到的相对原子质量:H-1C-12O-16S-32Fe-56第一部分选择题(共20分)一、选择题(本题包括15个小题,共20分。每小题只有一个选项符合题意,第1小题~第10小题,每小题1分:第11小题~第15小题,每小题2分)1.下列事例主要发生化学变化的是A.石墨作电极B.葡萄变美酒C.金刚石裁玻璃D.木材制家俱2.空气中稀有气体所占比例虽小,但用途广泛。下列气体属于稀有气体的是A.氦气B.氮气C.二氧化碳D.氧气3.增施化肥是农业增产的重要手段,下列化肥属于氮肥的是A.K2SO4B.K2CO3C.NH4ClD.Ca3(PO4)24.下列化...
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