Consider the spontaneous dissolution of NaCl in
water NaCl(s) - Na (aq) + Cl(aq)
Predict whether the entropy change for this
process is positive or negative and explain your
answer.

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.