AP BIOLOGY

Detailed explanation-1: -As per the law of mass action, the chemical reaction rate is directly proportional to the concentration of reactants. This implies that the chemical reaction rate increases with the increase in concentration and decreases with the decrease in the concentration of reactants.

Detailed explanation-2: -In general, increasing the concentration of a reactant in solution, increasing the surface area of a solid reactant, and increasing the temperature of the reaction system will all increase the rate of a reaction. A reaction can also be sped up by adding a catalyst to the reaction mixture.

Detailed explanation-3: -Typically, reaction rates decrease with time because reactant concentrations decrease as reactants are converted to products. Reaction rates generally increase when reactant concentrations are increased.

Detailed explanation-4: -The rate of a reaction decreases as time progresses. Collision Theory tells us that the rate of reaction depends on the reactant particles colliding with energy in excess of the Activation Energy for the reaction.

Detailed explanation-5: -Increasing the concentration of one or more reactants will often increase the rate of reaction. This occurs because a higher concentration of a reactant will lead to more collisions of that reactant in a specific time period.