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Which statement best describes a chemical reaction? Question 2 options:
In a chemical reaction, one or more substances called products are combined or broken down to form reactants.
In a chemical reaction, one or more substances called products are combined or broken down to form compounds.
In a chemical reaction, one or more substances called reactants are combined or broken down to form products.
In a chemical reaction, one or more substances called reactants are combined or broken down to form elements.