Chapter 19, Problem 11E

(a)

Interpretation Introduction

Interpretation : The name for ${\text{MoS}}_{\text{2}}$ and ${\text{MoO}}_3$ needs to be determined.

Concept Introduction : The name of any compound can be determined from the name of the atoms of elements present in it. The name of the atom is written first which is on left side of the formula followed by the name of the atom on the right side.

(b)

Interpretation Introduction

Interpretation : The oxidation state of Mo in ${\text{MoS}}_{\text{2}}$ and ${\text{MoO}}_3$ needs to be determined.

Concept Introduction : The oxidation state of Mo means charge on the molybdenum in ${\text{MoS}}_{\text{2}}$ and ${\text{MoO}}_3$ . If the charge on S and O atom is known, the charge on the Mo can be calculating noticing that the overall charge on the compound is zero or it is neutral.