Chapter 15.1, Problem 15.2QAP

Interpretation Introduction

(a)

Interpretation:

Identify the following as an oxidation or a reduction reaction:

  ${\text{Ni}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Ni}}^{\text{3+}}\left(\text{aq}\right){\text{ + e}}^{\text{-}}$

Concept Introduction:

Oxidation reaction is the gain of electrons and reduction reaction is the loss of electrons.

Interpretation Introduction

(b)

Interpretation:

Identify the following as an oxidation or a reduction reaction:

  ${\text{K}}^{\text{+}}\left(\text{aq}\right){\text{ + e}}^{\text{-}}\to \text{K}\left(\text{s}\right)$

Concept Introduction:

Oxidation reaction is the gain of electrons and reduction reaction is the loss of electrons.

Interpretation Introduction

(c)

Interpretation:

Identify the following as an oxidation or a reduction reaction:

  ${\text{Br}}_{\text{2}}\left(\text{l}\right){\text{+ 2e}}^{\text{-}}\to {\text{2Br}}^{\text{-}}\left(\text{aq}\right)$

Concept Introduction:

Oxidation reaction is the gain of electrons and reduction reaction is the loss of electrons.