During a chemical reaction, the ______ combine to form the ______.
A. reactants; products
B. carbons; electrolytes
C. electrolytes; carbons
D. products; reactants
A. reactants; products
A. reactants; products
The correct answer is A. reactants; products.
In a chemical reaction, reactants are the substances that undergo a chemical change, and products are the new substances that are formed. Reactants can be either elements or compounds, and products can be either elements or compounds as well.
To determine which answer choice is correct, we can think about the general process of a chemical reaction. Reactants are the starting materials that are consumed during the reaction, and the products are the new substances that are produced as a result of the reaction.
For example, consider the chemical reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O). In this case, hydrogen gas and oxygen gas are the reactants, and water is the product. The reactants combine together and undergo a chemical change, resulting in the formation of water as the product.
Therefore, during a chemical reaction, the reactants combine to form the products. So, option A. reactants; products is the correct choice.