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19 May, 12:45

Which of the following is not an example of a chemical reaction? Rust, Photosynthesis, Melting Ice, Heat from Fire?

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  1. 19 May, 15:30
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    Rust, photosynthesis, and heat from fire are all chemical reactions because new substances are formed and the chemical formula is changed. By doing this, bonds are broken and formed in the making of the new substance. Melting ice is physical change the molecules are still water molecules, it just changed physical form.
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