The ultimate outcome for any chemical reaction is the formation of a new chemical substance. While physical changes like melting (solid to liquid), heat, light, or gas formation can occur, the defining characteristic of a chemical reaction is the transformation of reactants into products, resulting in new substances with different properties.
Chemical reactions can be recognized by the presence of heat, light, or gas formation. The ultimate outcome for any chemical reaction is the
change from a solid to a liquid.
presence of sound.
formation of a new chemical substance.
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