Question

Hydrochloric acid and Sodium thiosulfate produce a precipitate. Watch this video and answer how does INCREASING the concentration of reactants affect the rate of reaction?

a
It did not affect the rate of reaction
b
It slowed down the rate of reaction
c
It increased the rate of the reaction

Answer 1

Increasing the concentration of reactants typically increases the rate of reaction. This is because a higher concentration means that there are more reactant particles present in a given volume, leading to a greater likelihood of collisions between them. Therefore, the correct answer would be:

**c. It increased the rate of the reaction.**