2018年中考化学真题分类汇编1物质的构成和变化考点3物质的分类3概念的综合考查(无答案).doc

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1物质的分类(18 江西)3、硫在物质的分类中属于A.混合物 B.化合物 C.非金属单质 D.金属单质(18 河北)12.归类整理是学习的一种重要方法。下列归类正确的是A.氯、碘、汞都是非金属元素 B.醋酸,硝酸钾,二氧化硅都是化合物C.铁、木头、玻璃都是热的良导体 D.太阳能,风能、核能然是可再生能源(18 聊城)12.下列物质归类正确的是选项 物质 归类A 甲醛、霉菌毒素、可卡因 有毒物质B 煤、酒精、天然气 化石燃料C 甲烷、二氧化碳、醋酸 有机物D 钢、不锈钢、玻璃钢 复合材料(18 吉林)12. 请完成下列思维导图。2

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