We can know that a chemical reaction has taken place by the evolution of carbon dioxide gas.
A chemical reaction is said to have occurred when one substance is transformed to another. Usually a chemical equation is used to represent a chemical reaction.
In this case, the chemical reaction equation is; Baking Soda + Vinegar —-> Carbon Dioxide + Water + Sodium Ion + Acetate Ion. We can know that a chemical reaction has taken place by the evolution of carbon dioxide gas.
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