The rate of a reaction is the speed in which reactants are converted into products. Which scenarios below would increase the rate of a chemical reaction? Choose the 4 correct answers. a increase the size of the reactant particles b increasing the temperature c decreasing the concentration of the reactants d decreasing the temperature e increasing the concentration of the reactants f add a catalyst g decrease the size of the reactant particles h add an acid
The correct answers are: b increasing the temperature, e increasing the concentration of the reactants, f add a catalyst, and h add an acid.
Increasing the temperature gives the reactant particles more kinetic energy, allowing them to collide more frequently and with more force, thereby increasing the rate of reaction. Increasing the concentration of reactants also increases the frequency of collisions, leading to a faster reaction rate. Adding a catalyst provides an alternative reaction pathway with lower activation energy, making the reaction proceed more quickly. Adding an acid can increase the reaction rate by providing protons that can react with the reactants.