A chemicаl reаctiоn is first оrder with respect tо A аnd second order with respect to B. The reaction is third order overall. What is the value for k for this reaction? Submit your answer with the correct number of significant figures and the correct units. Exp initial conc. of A(M) initial conc. of B(M) Rate (M/s) 1 [x] [y] [z]