Chapter 3, Problem 44QRT

(a)

Interpretation Introduction

Interpretation:

The product and balancing of the reaction and the type of the reaction for ${\text{MnCl}}_{\text{2}}\text{(aq) +}{\text{Na}}_{\text{2}}\text{S(aq)}$ should be identified.

Concept introduction:

Precipitation reaction: The formation of the product is insoluble when the ions combine in the solution is called precipitation reaction.

Acid - base reaction: Formation of the salt from the cation from the base and anion from the acid and formation of water is also the product.

Gas forming reaction: The reaction of acid and metal carbonates which produce carbonic acid. The carbonic acid decomposes which gives water and carbon dioxide.

Oxidation - reduction reaction: The electrons are transferred to one to other is called oxidation reduction reaction.

Balancing reaction:

Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.

Steps in balancing the information

• Step 1: Write the unbalanced equation
• Step 2: Find the coefficient to balance the equation.
• The coefficient should be reduced to the smallest whole number.

(b)

Interpretation Introduction

Interpretation:

The product and balancing of the reaction and the type of the reaction for  ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}\text{(aq) +}{\text{ZnCl}}_{\text{2}}\text{(aq)}$ should be identified.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The product and balancing of the reaction and the type of the reaction for ${\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\text{(aq) +}{\text{HClO}}_{\text{4}}\text{(aq)}$ should be identified.

Concept Introduction:

Refer to part (a).