2015年辽宁省铁岭市中考化学试题(空白卷)
2015年辽宁省铁岭市中考化学试卷一、选择题(本大题共15小题,1-10小题每小题1分,11-15小题每小题1分,共20分,每小题只有一个选项符合题意)1.(1分)下列变化属于化学变化的是( )A.红纸剪成窗花B.棉线织成衣服C.钢丝制成鱼钩D.玉米酿成白酒2.(1分)空气成分中,体积分数约占78%的是( )A.氮气B.二氧化碳C.稀有气体D.氧气3.(1分)用分子的相关知识解释下列现象,正确的是( )A.冰融化成水说明分子种类发生改变B.湿衣服晾干说明分子在不断运动C.分离液态空气说明分子可以再分D.水烧开后易把茶壶冲起说明温度升高分子会变大4.(1分)下列实验操作错误的是( )A....
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