江苏省宿迁市2021年中考化学试题(原卷版)
江苏省宿迁市2021年中考化学试题(原卷版)可能用到的相对原子质量:H-1C-12O-16Na-23S-32Fe-56Cu-64Zn-65一、选择题(共10小题,每小题2分,计20分。每题只有一个选项符合题意)1.下列变化过程中,不属于缓慢氧化的是A.塑料老化B.食物腐败C.镁条燃烧D.动植物呼吸2.下列物质溶于水,会导致溶液温度明显降低的是A.硝酸铵B.蔗糖C.浓硫酸D.氢氧化钠3.下列实验操作正确的是A.加热液体B.检查气密性C.点燃酒精灯D.氧气验满4.下列物质的性质与用途对应关系不正确的是A.铜丝具有导电性,用作导线B.活性炭具有吸附性,用作除味剂C.氧气可支持燃烧,用作燃料D.小苏打...
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