Chemistry

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A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be
a) rate = k (A)^2
b) rate = k (B)^2
c) rate = k (A) (B)
d) rate = k (A) (B)^2

I think its D because there are 2 moles of B and 1 mole of A. Do you agree with my answer, if not please explain to me why. Thank you

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