What happens during a chemical reaction how do you know when a chemical reaction has occurred and how can you represent chemical reactions with equations??
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Ответ:
We know that a chemical reaction has occurred by the appearance of a solid, evolution of a gas or change of color.
What is a chemical reaction?A chemical reaction refers to an interaction between reactants which leads to the formation of a product. A chemical reaction is represented using a chemical reaction equation.
We know that a chemical reaction has occurred when new substances appear in the system. This is signaled by the appearance of a solid, evolution of a gas or change of color.
Learn more about chemical reactions: link
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