   Chapter 3, Problem 43PS

Chapter
Section
Textbook Problem

Balance the following equations, and then write the net ionic equation.(a) (NH4)2CO3(aq) + Cu(NO3)2(aq) → CuCO3(s) + NH4NO3(aq)(b) Pb(OH)2(s) + HCl(aq) → PbCl2(s) + H2O(ℓ)(c) BaCO3(s) + HCl(aq) → BaCl2(aq) + H2O(ℓ) + CO2(g)(d) CH3CO2H(aq) + Ni(OH)2(s) → Ni(CH3CO2)2(aq) + H2O(ℓ)

(a)

Interpretation Introduction

Interpretation:

The given equation has to be balanced and net ionic equation for the given aqueous solution should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Explanation

The given compound is ammonium carbonate and copper nitrate which is soluble in water.  In this reaction ammonium carbonate reacts with copper nitrate to give copper carbonate and ammonium nitrate.

(NH4)2CO3(aq)+Cu(NO3)2(aq)CuCO3(s)+NH4NO3(aq)

Balance the equation,

Balance the hydrogen atom in the given equation, when balancing the equation, we should not alter the subscripts and we can change coefficients.

There are eight hydrogen atoms in the left side and four hydrogen atoms in the right side. Therefore two molecule of ammonium nitrate is added to right side of reaction.  Therefore the balanced equation is given below

(b)

Interpretation Introduction

Interpretation:

The given equation has to be balanced and net ionic equation for the given aqueous solution should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

(c)

Interpretation Introduction

Interpretation:

The given equation has to be balanced and net ionic equation for the given aqueous solution should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

(d)

Interpretation Introduction

Interpretation:

The given equation has to be balanced and net ionic equation for the given aqueous solution should be written.

Concept introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

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