Mechanism
A2 = 2A fast
A + B --> AB slow
Rate = k[A2][B]
Rate = k[A2][B]1/2
Rate = k [A2]1/2[B]
Rate = k[A2]
Rate = k[A][B]
<span>2A +B will become A2B,
</span><span>but the reaction rate will be limited by the slowest step, here 2A becoming A2.</span>
rate= k[A]^2
hope it helps
<span>The oxidation number that is given to chlorine in a chemical combination indicates how many electrons are gained or lost because it is a neutral compound, perchloric acid has a total charge of 0. Hydrogen has an oxidation number of +1,whereas oxygen has an oxidation number of -2. So for the total charge to be 0, 1 hydrogen + 4 oxygen of negative charge added together must equal 0, which will make the oxidation number of chlorine, solving this algebraically +7.</span>
1.54 x 10^-10 (ten to the negative tenth power)
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