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New material in this edition includes: An expanded discussion of elements, mixtures, and compounds, including a discussion of heterogeneous and homogeneous mixtures. A new Activity and a new Making Connections exercise on Elements, Mixtures and Compounds A new version of the Making Connections exercise on the Classification of Matter. The Activity and the accompanying Making Connections exercise on the Electrolysis of Water have been extensively overhauled.
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birth defects, or other reproductive harm.
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