Question

Which of the following reactions could proceed as written? Cl2(aq) + 2 NaBr(aq) >> 2 NaCl(aq)...

Which of the following reactions could proceed as written?

Cl2(aq) + 2 NaBr(aq) >> 2 NaCl(aq) + Br2 (aq)

l2(aq) + 2 NaBr(aq) >> 2 Nal(aq) + CI2 (aq)

Cl2(aq) + 2 NaI(aq) >> 2 NaCl(aq) + I2 (aq)

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Homework Answers

Answer #1

Cl2(g) + 2 e− is in equilibrium with 2 Cl− +1.36

Br2(aq) + 2 e− is in equilibrium with 2 Br− +1.0873

I2(s) + 2 e− is in equilibrium with 2 I− +0.54

Therefore,

the most positive tend to REDUCE, then

Cl2 > Br2 > I2>

Cl2(aq) + 2 NaBr(aq) >> 2 NaCl(aq) + Br2 (aq) --> will not happen, since Cl2 will remain as Cl2

l2(aq) + 2 NaBr(aq) >> 2 Nal(aq) + CI2 (aq) --> will happen, since Cl- ions tends to form Cl2

Cl2(aq) + 2 NaI(aq) >> 2 NaCl(aq) + I2 (aq) --> will not happen, since Cl2 will remain as Cl2

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