内容正文:
第一章 第一节
物质的分类及转化
1
目录
CONTENTS
第一课时 物质的分类
第二课时 物质的转化
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学习目标与核心素养
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宏观辨识与微观探析
认识元素可以组成不同种类的物质,根据物质的组成和性质可以对物质进行分类。
认识胶体是一种分散系
证据推理与模型认知
同类物质具有相似性,各类物质之间可以相互转化。
科学态度与社会责任
认识丁达尔效应在生活中的应用。
【思考与讨论】
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4
一、物质的分类
人们常根据物质的组成、结构、性质或者用途等进行分类
1、根据物质的组成和性质分类
由同一种元素形成几种性质不同的单质 称同素异形体