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Both true and false.

Rusting is both a chemical reaction (converting iron to iron oxide) and a physical process (the iron oxide absorbs water and hydrates, causing it to expand and fracture the rusting metal into pieces).

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7y ago

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Are the substances that present when a chemical reaction begins the products?

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Chemical reaction begins with substances called?

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Is it trueThe substance that are present when a chemical reaction begins are the products?

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The substances present when a chemical reaction begins?

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