精品解析:2022年宁夏中考化学真题(原卷版)
【中小学教辅资源店微信:mlxt2022】化学相对原子质量:H—I C—12 O—16 S—32 Fe—56一、单项选择题(本题共11小题,每小题2分,共22分)1.下列变化属于化学变化的是A.水沸腾蒸发B.天然气燃烧C.玻璃杯破碎D.湿衣服晾干2.下列实验操作正确的是A.点燃酒精灯B.倾倒液体C.往试管里装入固体粉末D.读取量筒内液体的体积3.分类法在科学研究中具有广泛的应用。下列对物质分类正确的是A.纯碱、烧碱都属于碱B.黄铜、氧化铜都属于金属材料C.一氧化碳、酒精都属于有机物D.硝酸钾、磷酸二氢铵都属于复合肥料4.对下列生活中的做法或现象,解释错误的是选项做法或现象解释A...
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