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Balance each chemical equation.(a) MnO2(s) + HCl(aq) ?

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 52P Chapter 7

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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1
Problem 52P

PROBLEM 52P

Balance each chemical equation.

(a) MnO2(s) + HCl(aq) → Cl2(g) + MnCl2(aq) + H2O(l)

(b) CO2(g) + CaSiO3(s) + H2O(l) → SiO2(s) + Ca(HCO3)2(aq)

(c) Fe(s) + S(l) → Fe2S3(s)

(d) NO2(g) + H2O(l) → HNO3(aq) + NO(g)

Step-by-Step Solution:

Solution 52P

Step 1:

(a) MnO2(s) + HCl(aq) → Cl2(g) + MnCl2(aq) + H2O(l)

Number of O in reactant is 2 where as in product it is only one. To balance the total number of O atoms, multiply 2 with H2O. So the balanced equation will be,

MnO2(s) + HCl(aq) → Cl2(g) + MnCl2(aq) + 2H2O(l)

Now, number of H and Cl in product is 4, so in order to balanced the total number of H and Cl , multiply 4 with HCl.

The balanced chemical equation is,

MnO2(s) + 4HCl(aq) → Cl2(g) + MnCl2(aq) + 2H2O(l)

Step 2:

(b) CO2(g) + CaSiO3(s) + H2O(l) → SiO2(s) + Ca(HCO3)2(aq)

The balanced chemical equation is,

2 CO2(g) + CaSiO3(s) + H2O(l)  SiO2(s) + Ca(HCO3)2(aq)

Step 3 of 4

Chapter 7, Problem 52P is Solved
Step 4 of 4

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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