Chapter 20, Problem 20.76SP

(a)

Interpretation Introduction

To determine:

The balanced net ionic equation for: A ${\text{CrO}}_{\text{4}}{}^{\text{2}-}$ solution turns from yellow to orange upon the addition of acid.

(b)

Interpretation Introduction

To determine:

The balanced net ionic equation for: ${\text{Fe}}^{\text{3}+}\left(\text{aq}\right)$ reacts with aqueous $\text{KSCN}$ to give a deep red solution.

(c)

Interpretation Introduction

To determine:

The balanced net ionic equation for: Copper metal reacts with nitric acid to give $\text{NO}$ gas and a blue solution

(d)

Interpretation Introduction

To determine:

The balanced net ionic equation for: A deep green solution of $\text{Cr}{\left(\text{OH}\right)}_{\text{3}}$ in excess base turns yellow on the addition of hydrogen peroxide.