Question
The starting substances in a chemical reaction.
Answer
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Sebastian
Professional · Tutor for 6 years
Answer
Reactants
Explanation
The question is asking for the term used to describe the substances that are used up during a chemical reaction to create new substances. In chemistry, these starting substances are known because they undergo a transformation during the reaction. They are initially present and are consumed as the reaction proceeds to form the products, which are the new substances created by the reaction. The conservation of mass principle states that in a chemical reaction, the total mass of the reactants equals the total mass of the products.