2012年山东省威海市中考化学试卷(含解析版)
2012年山东省威海市中考化学试卷一、选择题(本题共7小题,每小题3分,共21分.每小题只有一个选项符合题意)1.(3分)元素周期表是学习化学的重要工具.从图获取该元素的信息,正确的是( )A.质子数为39.95B.属于金属元素C.原子最外层有18个电子D.元素符号为Ar2.(3分)化学是认识物质的科学.下列问题不属于认识物质组成的是( )A.渤海水质不断恶化,海水中的主要污染物有哪些B.20℃时,能否根据固体物质的溶解度判断其溶解性C.什么物质制作的火箭喷口能耐受几千度的高温D.30g20%的氢氧化钠溶液中含有多少克氢氧化钠、多少克水3.(3分)化学是创造物质的科学,要创造新物质,其核心是...
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