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What type of change results in the formation of a new substance?

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a physical change

a chemical change

both (a) and (b)

neither of these

answer is B.

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Detailed Solution

A chemical change occurs when the molecular composition is totally transformed and a new product is created.

Chemical transformations are irreversible and permanent.

It indicates that adjusting or altering the experimental changes will not reverse the chemical change.

During a chemical reaction, the mass of the substance changes. The mass is either added or subtracted.

Energy shifts occur during chemical reactions. The breakdown of old bonds in reactants and the synthesis of new bonds in products require different amounts of energy.

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