2015年扬州市中考化学试题及答案
2015年江苏省扬州市中考化学试卷 一、单项选择题(本大题共15道小题,每小题2分,共30分。每小题只有一个选项符合题意。)1.(2分)(2015•扬州)今年是扬州建城2500周年,下列做法不合理的是( ) A.直接燃烧煤炭B.分类回收垃圾C.使用降解塑料D.推广乙醇汽油 2.(2分)(2015•扬州)生活中的很多现象与变化有关,下列属于物理变化的是( ) A.高炉炼铁B.干冰升华C.食物变质D.光合作用 3.(2分)(2015•扬州)下列物质由原子直接构成的是( ) A.NaClB.H2OC.CO2D.Fe 4.(2分)(2015•扬州)自然界中的物质大多数是化合物.下列物质属于氧化物...
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