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3 years ago

7

A student is asked to balance an equation by using the half-reaction method. He determines the two half reactions as shown below

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What should he write as the final, balanced equation?

1 answer:

lina2011 [118]3 years ago

6 0

Answer:

Cl2 + 2Br -> Br2 + 2Cl

Explanation:

There are 2 electrons in each side, so you can substract them and then up with 0 electrons

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$\begin{aligned}\rm Q &= \rm U_{2} - U_{1} + W\\\\\rm U_{2} &= \rm Q - W + U_{1}\\\\\rm U_{2} &= 700 - 400 + 1200\\\\&= 1500 \;\rm J\end{aligned}$

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