2012年天津市中考化学试题及答案
2012年天津市初中毕业生学业考试试卷化学一、选择题(共10小题,每小题2分,满分20分。给出的四个选项中,只有一个最符合题意)1.下列成语中,本意主要为化学变化的是( )A.滴水成冰B.积土成山C.百炼成钢D.木已成舟2.下列能源中,不会对环境造成污染而且取之不尽的是( )A.石油B.天然气C.氢气D.太阳能3.下列物质中,属于氧化物的是( )A.O2B.H2OC.KMnO4D.Ca(HCO3)24.蛋白质是人体不可缺少的营养物质,下列食物中富含蛋白质的是( )A.蔬菜B.大米C.鸡蛋D.植物油5.材料与人类生活紧密相关,下列物品与所用材料的对应关系错误的是( )A.纯羊毛衫---...
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