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Chemistry: Principles and Reactions

8th Edition
William L. Masterton + 1 other
Publisher: Cengage Learning
ISBN: 9781305079373

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Chapter
Section
BuyFindarrow_forward

Chemistry: Principles and Reactions

8th Edition
William L. Masterton + 1 other
Publisher: Cengage Learning
ISBN: 9781305079373
Chapter 3, Problem 47QAP
Textbook Problem
1 views

Balance the following equations:

(a) CaC 2 ( s ) + H 2 O ( l ) Ca ( OH ) 2 ( s ) + C 2 H 2 ( g )

(b) ( NH 4 ) 2 Cr 2 O 7 ( s ) Cr 2 O 3 ( s ) + N 2 ( g ) + H 2 O ( f )

(c) CH 3 NH 2 ( g ) + O 2 ( g ) CO 2 ( g ) + N 2 ( g ) + H 2 O ( g )

Interpretation Introduction

(a)

Interpretation:

The given chemical equation should be balanced.

Concept introduction:

The chemical reaction is said to be balanced if there are same number of constituent atoms are present on both sides of the reaction arrow. A balanced chemical reaction satisfies the law of conservation of mass.

Explanation of Solution

The given chemical reaction is as follows:

CaC2(s)+H2O(l)Ca(OH)2(s)+C2H2(g)

The number of Ca and C atom are already balanced in the given reaction. The number of oxygen atoms on the left side of the reaction arrow is 1 and that on the right hand side of the reaction arrow is 2.

Similarly, the number of hydrogen atoms on the left side of the reaction arrow is 2 and that of the oxygen atoms is 4.

Thus, give coefficient 2 to H2O on the left hand side of the reaction arrow to balance the number of hydrogen and oxygen atoms

Interpretation Introduction

(b)

Interpretation:

The given chemical equation should be balanced.

Concept introduction:

The chemical reaction is said to be balanced if there are same number of constituent atoms are present on both sides of the reaction arrow. A balanced chemical reaction satisfies the law of conservation of mass.

Interpretation Introduction

(c)

Interpretation:

The given chemical equation should be balanced.

Concept introduction:

The chemical reaction is said to be balanced if there are same number of constituent atoms are present on both sides of the reaction arrow. A balanced chemical reaction satisfies the law of conservation of mass.

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Chemistry: Principles and Reactions
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