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A reaction is found to proceed in two st...

A reaction is found to proceed in two steps as `A + B rarr E` (slow),, `A+E rarr C+D` (fast). Write the law expresison and overall balanced equation.

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`A + B rarr E` (slow)
`A + E rarr C + D` (fast)
The overall reaction
`2A + B rarr C + D`
Since the slow step is the rate-determining step.
`:. r = k[A][B]`.
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