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MariettaO [177]
3 years ago
7

Which half-reaction is most easily oxidized?

Chemistry
2 answers:
timama [110]3 years ago
8 0

Which half-reaction is most easily oxidized?

Answer: Na^+ + e → Na= -2.71 V (D for plato users)


alisha [4.7K]3 years ago
7 0

Answer:

Na+ + e- Na = -2.71 V

Explanation:

We have to remember the nomenclature for redox reactions:

<u>Oxidation</u>:

M~->~M^++e^-

<u>Reduction</u>:

M^+ + e^-~ ->M

So, all the answer options are written as <u>reductions</u>. Therefore the voltage values, in this case, would be the <u>reduction potentials</u>. If we have a higher (<u>positive</u>) potential the compound would be <u>more inclined to a reduction</u> and vice-versa if we have a smaller potential (<u>negative</u>) the compound would be <u>more inclined to oxidation</u>.

In this case, the <u>most negative value</u> is for Na+, so this atom would be more easily <u>oxidized</u>.

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Answer:  d) -705.55 kJ

Explanation:

Heat of reaction is the change of enthalpy during a chemical reaction with all substances in their standard states.

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Reversing the reaction, changes the sign of \Delta H

C_2H_4(g)+3O_2(g)\rightarrow 2CO_2(g)+2H_2O(l)

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