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If the following reaction 2 H2(g) + 2 NO(g) → 2 H2O(g) + N2(g) has the...

If the following reaction 2 H2(g) + 2 NO(g) → 2 H2O(g) + N2(g) has the rate law expression rate = k[H2]2[NO] what is the over all order of the reaction?

Please explain how you get the answer.

(a) 1
(b) 2
(c) 3
(d) 4
(e) 1 and 2

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