Chapter 4, Problem 4.66QP

(a)

Interpretation Introduction

Interpretation:

A balanced equation for the given reaction has to be written.

“Nitric acid reacts with calcium hydroxide to produce water and calcium nitrate.”

Concept Introduction:

Balancing the equation:

• There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
• First write the skeletal reaction from the given information.
• Then count the number of atoms of each element in reactants as well as products.
• Place suitable coefficients in front of reactants as well as products until the number of atoms on each side (reactants and products) becomes equal.

(b)

Interpretation Introduction

Interpretation:

A balanced equation for the given reaction has to be written.

“Butane ${\text{(C}}_{\text{4}}{\text{H}}_{\text{10}}\text{)}$ reacts with oxygen to produce water and carbon dioxide.”

Concept Introduction:

Refer part (a)

(c)

Interpretation Introduction

Interpretation:

A balanced equation for the given reaction has to be written.

“Sulphur, present as an impurity in coal, is burned in oxygen to produce sulphur dioxide.”

Concept Introduction:

Refer part (a)

(d)

Interpretation Introduction

Interpretation:

A balanced equation for the given reaction has to be written.

“Hydrofluoric acid $\text{(HF)}$ reacts with glass ${\text{(SiO}}_{\text{2}}\text{)}$ in the process of etching to produce silicon tetrafluoride and water.”

Concept Introduction:

Refer part (a)