select the correct answer. what reaction is depicted by the given equation: au^{3+} + 3e^{-} → au\na…

select the correct answer. what reaction is depicted by the given equation: au^{3+} + 3e^{-} → au\na. oxidation\nb. reduction\nc. combustion\nd. replacement\ne. neutralization
Answer
Explanation:
Step1: Recall redox - reaction concepts
Reduction is the gain of electrons, and oxidation is the loss of electrons.
Step2: Analyze the given equation
In the equation $Au^{3 +}+3e^-\to Au$, the gold ion ($Au^{3 +}$) gains 3 electrons to form neutral gold ($Au$).
Answer:
B. reduction