2010年海南中考化学试题及答案
海南省2010年初中毕业升学考试化学试题第二部分化学试题(满分ll0分)含答案解题时可能用到的相对原子质量:H-1C-120-16Ca-40,五、选择题(本大题共l4小题,每小题只有一个选项符合题意。每小题3分,共42分)24.塑料矿泉水瓶底部常见的可回收标志为:B25.下列变化中属于物理变化的是:A.煤气燃烧B.菜刀生锈C牛奶变质D.瓷碗破碎26.右图的信息能说明:A.分子在不断地运动B.分子之间有间隔、C.分子很小D.分子可以再分27.2010年6月7日《海南日报》载:科学家发现“土卫六”表面遍布“湖海河流”,这些“湖海流”中的液体并非水,而是液态甲烷和液态乙烷(C2H6)。甲烷和乙烷均属...
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