2015年四川省遂宁市中考化学试卷(含解析版)
2015年四川省遂宁市中考化学试卷一、选择题(本大题共7小题,每小题只有一个选项符合题意,每小题3分,满分21分)1.(3分)下列变化中,属于化学变化的是( )A.玻璃碎了B.柴梗被折断C.干冰升华D.镁带燃烧2.(3分)下列实验基本操作中,正确的是( )A.检查装置气密性B.向试管中加入锌粒C.读取液体体积D.点燃酒精灯3.(3分)人体缺碘会引起甲状腺肿大,幼儿缺碘影响生长发育,造成思维迟钝.食盐中通常加入一定量的碘酸钾(KIO3),补充人体需要的碘元素.结合图中信息判断,下列叙述中,正确的是( )第1页(共20页)A.碘元素属于金属元素B.碘的相对原子量是126.9gC.碘离子(I﹣...
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