精品解析:2023年山东省烟台市中考化学真题(解析版)
【淘宝搜索店铺:中小学教辅资源店微信:mlxt2022】2023年烟台市初中学业水平考试化学试题可能用到的相对原子质量:H-1C-12O-16Na-23Cl-35.5Ca-401.下列各变化中属于化学变化的是A.玻璃破碎B.食物腐败C.酒精挥发D.冰雪消融【答案】B【解析】【详解】A、玻璃破碎是物质形状改变,没有新物质生成,是物理变化。不符合题意;B、食物腐败发生缓慢氧化,有新物质生成,是化学变化。符合题意;C、酒精挥发是物质状态改变,没有新物质生成,是物理变化。不符合题意;B、冰雪消融是水由固态变为液态,没有新物质生成,是物理变化。不符合题意;故选B。2.2023年世界环境日中国的主题是“建...
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