2013年辽宁省沈阳市中考化学试题及答案
沈阳市皇姑区博华教育2013年沈阳中考化学试题及答案可能用到的相对原子质量:H-1C-12O-16Na-23Mg-24S-32一、选择题(本题包括13小题,1—11小题,每题1分;12、13小题,每题2分,共15分。每小题有一个最符合题目要求的选项)1.下列厨房中的变化,属于化学变化的是A.蔬菜榨汁B.铁钩生锈C.水的沸腾D.白糖的溶解2.为了预防骨骼疏松,应该补充的元素是A.CaB.IC.ZnD.Fe3.下列物质由原子构成的是A.氯化氢B.氢气C.氯化钠D.硅4.近年来,我国许多城市禁止使用含铅汽油,最主要是为了A.降低汽油成本B.减少铅资源消耗C.提高汽油燃烧效率D.避免造成环境污染5.下...
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