What is an example of a balanced half reaction?

Answer 1

Oxidation of #NH_3# to #NO_3^-#?

#N^(-III)# is oxidized to #N^(+V)#

#NH_3 + 3H_2O rarr NO_3^(-) + 8e^(-) + 9H^+#

Is this balanced with respect to mass and charge? If not, it should be. All I did was account for the difference in oxidation numbers by electrons, and then add water or #H^+# to balance oxygen and hydrogen.

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Answer 2

Cooper Anderson

The reduction of silver ions (Ag⁺) to silver metal (Ag) is an illustration of a balanced half reaction: Ag⁺ + e⁻ → Ag

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.