The rate and extent of chemical change

Question 1

what factors effect the rates of chemical reaction?

Answer 1

•the concentration of reactants in a solution
•the pressure of reacting gases
•the surface area of solid reactants
•the temperature and presence of catalysts

Question 2

what’s collision theory?

Answer 2

it explains how various factors effect rates of reactions.
chemical reactions can occur only when reacting particles collide with each other and with sufficient e

Question 3

what are catalysts

Answer 3

catalysts increase the rate of reaction by providing a different pathway for the reaction that has a lower activation energy