Separate the ionic compound below into its component ions. Include a number of ions (coefficient) and ion charge. Formatting example: 3Mg2++2N3− Co(HCO3)3

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.