I am doing a chemistry review about rates, and I get asked "Which of these statements is false?"
The answer is
In reactions that are second order in one reactant and first order in another, the slow step generally involves a three-body collision of the reactants.
I imagine it looks like
$$ rate = k[A]^2[B]^1 $$
So at the slowest elementary step there should be $$ 2A + B = something $$
Which is a three way collision between two A molecules and a B.
What am I doing wrong?
Question number 2 (http://www.mesacc.edu/~paudy84101/CHM152F2005/Exam1%20Key.pdf)
This is not my review, in case you are wondering. I just have the same question.