3: 4: 4 H 7 8 10 11 13 Given a reaction with a rate law of Rate = k[A][B]2, what is the rate constant if [A] = 0.25 M and [B] = 0.5 gives a rate of 0.300 M/s? Enter only the magnitude (the number part) of the rate constant to four significant figures. A What are the correct units for k? Use the symbol to enter the exponent. For example, 1/min is written as min^-1. ^ 4 A What concentration of A will increase the rate of the reaction to 0.700 M/s if [B] is 0.600 M? Give your answer to three significant figures. A/ Question 2 (1 point) Identify the spectator ions in the following equation. KBr(aq) + AgNO3(aq)