2018年中考化学真题分类汇编1物质的构成和变化考点1物质的构成1宏观现象微观解释1常见的微观解释3很小(无答案).doc

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2018年中考化学真题分类汇编1物质的构成和变化考点1物质的构成1宏观现象微观解释1常见的微观解释3很小(无答案).doc_第1页
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1物质的构成(18 昆明)10500mL 水中含有约1.671025个水分子,说明( )A分子可以再分 B分子之间有间隔C分子在不断运动 D分子的体积和质量都很小

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