精品解析:2023年辽宁省大连市中考化学真题(解析版)
大连市2023年初中毕业升学考试物理和化学化学部分注意事项:1.请在答题卡上作答,在试卷上作答无效。2.物理试卷共四大题(1~31小题),满分90分。化学试卷共四大题(32~56小题),满分70分。物理和化学合计满分160分。考试时间为150分钟。相对原子质量:H-1O-16Mg-24S-32Fe-56Cu-64Ag-108一、选择题(本大题共15小题,每小题1分,共15分。每小题只有一个选项符合题意)1.下列属于化学变化的是A.石蜡熔化B.红磷燃烧C.胆矾研碎D.酒精挥发【答案】B【解析】【详解】A、石蜡熔化是石蜡固体受热融化为液体,只是状态的改变,没有新物质的生成,是物理变化;B、红磷与空...
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