For a reaction `A+B to `P, the rate law is given by:
`r=k[A]^(1//2)[B]^(2)`
What is the order of the reaction?

Explanation

To determine the order of the reaction given the rate law, we can follow these steps:

**Step 1: Identify the rate law expression.**
The rate law for the reaction A + B → P is given as:
\[ r = k[A]^{1/2}[B]^{2} \]

**Step 2: Identify the powers of the reactants in the rate law.**
In the rate law:
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