Question

As the concentration of reactants in a chemical reaction increases, the reacting atoms will encounter each other A. less frequently, causing the reaction rate to decrease. B. more frequently, causing the reaction rate to decrease. C. less frequently, causing the reaction rate to increase. D. more frequently, causing the reaction ra

Answer 1

The answer to your question is D. more frequently, causing the reaction rate to increase.

Increasing the concentration of reactants in a chemical reaction will mean that there will more atoms or molecules to collide and react with each other. Given a fixed space (solvent), increasing the reactants will mean greater chances of these atoms or molecules to collide with each other.

With more collisions (frequent reactions), then reaction rate increases. A reaction occurs, in this case a chemical reaction, when the reactants collide.