2018年辽宁省营口市中考化学试题(空白卷)
2018年辽宁省营口市中考化学试卷一、选择题(本大题共15道小题,每小题只有一个选项符合题意;其中1-10小题每小题1分,11-15小题每小题1分,共20分)1.(1分)下列变化中,属于化学变化的是( )A.水汽凝结B.粮食酿酒C.切分蛋糕D.铁杵磨针2.(1分)下列食物中富含糖类的是( )A.玉米B.黄瓜C.牛奶D.花生油3.(1分)下列关于分子、原子的说法正确的是( )A.原子是微小的实心球体,可以再分B.同种元素的原子,质子数可能不同C.单个SO2分子有刺激性气味D.化学变化中原子的种类和个数都不变4.(1分)下列实验操作中,正确的是( )A.滴加液体B.稀浓硫酸C.点燃酒精灯D...
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