In a chemical equation, the substances on the left-hand side are called what?

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Prepare for the Dual Enrollment Physical Science Midterm. Study with flashcards and multiple choice questions, each with hints and explanations. Ace your exam!

Multiple Choice

In a chemical equation, the substances on the left-hand side are called what?

Explanation:
The substances on the left-hand side are the reactants—the starting materials that undergo change to form the products on the right. The arrow shows the direction of the transformation, and the right-hand side lists what is produced. In a simple reaction like hydrogen gas reacting with oxygen gas to make water, hydrogen and oxygen are the reactants, and water is the product. Intermediates are species formed during the reaction pathway (not usually shown in the overall equation), and catalysts are substances that speed up the reaction without being consumed.

The substances on the left-hand side are the reactants—the starting materials that undergo change to form the products on the right. The arrow shows the direction of the transformation, and the right-hand side lists what is produced. In a simple reaction like hydrogen gas reacting with oxygen gas to make water, hydrogen and oxygen are the reactants, and water is the product. Intermediates are species formed during the reaction pathway (not usually shown in the overall equation), and catalysts are substances that speed up the reaction without being consumed.

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