Chapter 20, Problem 20.77SP

(a)

Interpretation Introduction

To determine:

The balanced net ionic equation for: A ${\text{CuSO}}_{\text{4}}$ solution becomes dark blue when excess ammonia is added.

(b)

Interpretation Introduction

To determine:

The balanced net ionic equation for: A solution of ${\text{Na}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}$ turns from orange to yellow on the addition of base.

(c)

Interpretation Introduction

To determine:

The balanced net ionic equation for: When base is added to a solution of $\text{Fe}\left({\text{NO}}_{\text{3}}\right)$ , a red brown precipitate forms

(d)

Interpretation Introduction

To determine:

The balanced net ionic equation for: When base is added to a solution of $\text{Fe}\left({\text{NO}}_{\text{3}}\right)$ , a red brown precipitate forms