Are my answers to these questions on chemical equations correct?

Question

A series of chemical equations used to indicate the step-by-step processes by which a chemical reaction occurs is called a(n) _______.

A. equation series

B. reaction mechanism

C. catalyst series

D. All of the Above

E. None of the Above

The order of a chemical reaction with respect to one of its reactants is 0. If you double the concentration of that reactant, the reaction rate will _______.

A. be cut in half

B. double

C. increase by an undetermined amount

D. remain unchanged

E. None of the Above

Answer 1

Yes. Correct.