精品解析:2024年江苏省徐州市中考化学试题(解析版)
【淘宝搜索店铺:中小学教辅资源店微信:mlxt2022】徐州市2024年中考化学试卷(考试时间:60分钟满分:60分)可能用到的相对原子质量:H—1C—12N—14O—16Na—23Cl—35.5一、选择题(每小题只有一个选项符合题意;每小题2分,共20分)1.从化学视角研究水有重要意义。下列说法正确的是A.水是最常用的溶剂B.水蒸发属于化学变化C.水由氢气和氧气组成D.长期饮用硬水利于健康【答案】A【解析】【详解】A、水可以溶解多种物质,是最常用的溶剂,说法正确,符合题意;B、水蒸发只是状态发生改变,该过程中没有新物质生成,属于物理变化,说法错误,不符合题意;C、水由氢元素和氧元素组成,说法...
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