2013年福建省福州市中考化学试题(含答案)
12013年福州市初中毕业会考、高级中等学校招生考试化学试卷可能用到的相对原子质量:H—1C—12O—16S—32Ca—40Fe—56一、选择题(共36分)1.下列生活用品所含的主要材料,属于有机合成材料的是( )A.真丝围巾B.纯棉袜子C.不锈钢锅D.塑料水桶2.硅酸钠(Na2SiO3)可用作粘合剂和防火材料。硅酸钠中硅元素的化合价为( )A.+1B.+2C.+3D.+43.人体缺乏碘元素会引起的病症是( )A.贫血B.甲状腺肿大C.佝偻病D.夜盲症4.下列化学用语与含义不相符的是( )A.O2—2个氧原子B.Ca2+—钙离子C.P2O5—五氧化二磷D.2H2O—2个水分子5.水是生...
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