2018年海南中考化学试题及答案
海南省2018年中考化学试题可能用到的相对原子质量:H-1O-16Cl-35.5K-39一、选择题1.日常生活中发生的下列变化,不属于化学变化的是()A.西瓜榨果汁B.苹果酿果醋C.糯米酿甜酒D.鲜奶制酸奶2.下列空气成分中能供给呼吸的是A.氮气B.氧气C.二氧化碳D.稀有气体3.下列厨房用品在水中能形成溶液的是A.芝麻油B.面粉C.蔗糖D.黄豆酱4.下列实验操作正确的是A.氧气验满B.检查装置气密性C.点燃酒精灯D.取用固体药品5.某地温泉中富含硫、铜、锌等,可以治疗皮肤病。这里的“硫、铜、锌”指的是A.分子B.原子C.元素D.单质6.下列物质属于氧化物的是A.KMnO4B.KOHC.O3D...
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