Chapter 4, Problem 135SAE

Interpretation Introduction

(a)

Interpretation:

The given symbol must be explained.

Concept introduction:

A chemical equation is the mathematical representation of a chemical reaction using formulas of all compounds involved.

Reaction conditions like temperature, pressure, reaction time etc are while writing a chemical equation.

Interpretation Introduction

(b)

Interpretation:

The term ‘aq’ must be explained.

Concept introduction:

In chemical reaction the physical states of all species are given in bracket.

Solid substances are written as ‘s’, liquid substances are written as ‘l’ and gaseous substances are written as ‘g’.

Interpretation Introduction

(c)

Interpretation:

The term stoichiometric coefficient must be explained.

Concept introduction:

In chemical reaction the reactants and products are balanced properly with definite number of moles.

Interpretation Introduction

(d)

Interpretation:

The term overall equation must be explained.

Concept introduction:

In chemical reaction the reactants and products are balanced properly with definite number of moles. The reaction may follow step by step through some intermediate. In that case one simplified final equation may be obtained eliminating the intermediate formation.