# Wiki’s explanation of the rate of chemical reaction [closed]

It says: the rate of the chemical reaction is directly proportional to the product of the activities or concentrations of the reactants.

I can’t wrap my head around this statement. Could anyone explain it in other words please?

• Simply put, if your reaction is A+B, then it is [A]*[B]. – Ivan Neretin Oct 3 '20 at 18:12
• It isn't.$\mathstrut$ – Ivan Neretin Oct 3 '20 at 18:59
• Not only that, but it says how exactly rate depends on concentrations. – Ivan Neretin Oct 3 '20 at 19:07
• The quoted statement is only true if the reactants are directly reacting in an elementary step. – Zhe Oct 3 '20 at 19:52
• Wiki ≠ Wikipedia. Also, the URL to the target article is missing, and questions like this are usually getting closed as opinion based since it is essentially a request to digest studying material. This corresponds to the cognition, not chemistry. – andselisk Oct 3 '20 at 20:13