Chapter 2, Problem 2.125QE

(a)

Interpretation Introduction

Interpretation:

Name of the $\text{NO}$ has to be written and whether it is ionic or molecular has to be indicated.

Concept Introduction:

Ionic compounds:

Naming of ionic compounds that contain monoatomic ions are given by using the name of the cation (mostly metal), which is followed by the name of anion.  The anion (mostly nonmetal) is named by adding the suffix “-ide”.  When an ionic compound is made up of only two elements, it is known as binary compounds.

In case of binary compounds, the numerical prefixes are not shown in the name because the number of ions is inferred from the empirical formula.

Molecular compounds:

Two or more nonmetals combine to form molecular compounds.  The naming of molecular compound is given by following two rules.

• Element that is present in far left of the periodic table appears in the name first.
• Element that is closer to bottom within any of the group appears in the name first.

Numerical prefixes are used in case of molecular compounds to mention how many times the atom of same elements occurs in the formula.  Prefix mono is not used for the first element while for the second element it is used.

(b)

Interpretation Introduction

Interpretation:

Name of the ${\text{Y}}_{\text{2}}{{\text{(SO}}_{\text{4}}\text{)}}_{\text{3}}$ has to be written and whether it is ionic or molecular has to be indicated.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

Name of the ${\text{Na}}_{\text{2}}\text{O}$ has to be written and whether it is ionic or molecular has to be indicated.

Concept Introduction:

Refer part (a).

(d)

Interpretation Introduction

Interpretation:

Name of the ${\text{NBr}}_{\text{3}}$ has to be written and whether it is ionic or molecular has to be indicated.

Concept Introduction:

Refer part (a).