2012年苏州市中考化学试卷及答案
2012苏州中考真题及答案2012年苏州市初中毕业暨升学考试试卷化学可能用到的相对原子质量:11-1C-12N-140-16F-19Na-23S-32CI-35.5选择题(共60分)单项选择题(包括30题,每题2分,共60分。每题只有一个选项符合题意。)1.为了防止贫血,人体应适当补充的微量元素是A.锌B.铁C.钙D.硒2.下列符号可以表示2个氢原子的是A.2H+B.2HC.H2D.H2O23.下列物质属于纯净物的是A.洁净的空气B.清澈的海水C.蒸馏水D.自来水4.下列产品的开发利用与环境保护无关的是A.无铅汽油B.无氟冰箱C.无磷洗衣粉D.加碘食盐5.在通常情况下空气中各种成分的含量保持相...
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