rate=k[A2][B2]^2.

Question

by how much would the rate change if:
i) [A2] is doubled?
ii) [B2] is halved?

*does the rate change equal with k?

Answer 1

If A2 is doubled the result doubles

if B2 is divided by 2, the result is divided by 2^2 or four

Answer 2

k doesn't change.