Elementary reactions | Kinetics | AP Chemistry | Khan Academy

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[diplomat]

H2 + Cl2 is 0 order reaction not 2nd order and also many other reaction

[gilly]

plaese answer my question
Q.For a reaction rate law expression is :
Rate = K [A] the power 1/2 [B] the power 2
Can the reaction be an elementry ? explain

[ayushagarwal]

But what if I multiply whole equation by 2 then coefficient will get doubled but rate should be same then how is this valid