Hydrochloric acid and Sodium thiosulfate produce a precipitate. how does INCREASING the concentration of reactants affect the rate of reaction?
A. It slowed down the rate of reaction
B. it did not affect the rate of reaction
C. It increased the rate of the reaction
C. It increased the rate of the reaction.
C. It increased the rate of the reaction
To understand the effect of increasing the concentration of reactants on the rate of reaction, we need to consider the collision theory. According to this theory, for a chemical reaction to occur, the reactant particles must collide with each other with sufficient energy and proper orientation.
When the concentration of reactants increases, the number of reactant particles per unit volume also increases. This means that there are more particles available to collide with each other. As a result, the frequency of collisions between reactant particles increases, which leads to a higher likelihood of successful collisions.
Therefore, increasing the concentration of reactants generally increases the rate of reaction. The correct answer is C. It increased the rate of the reaction.