(a)
Interpretation:
The balanced equation for the decomposition reaction of solid chromium
Concept introduction:
A
Answer to Problem 40E
The balanced equation for the decomposition reaction of solid chromium
Explanation of Solution
Solid chromium
The unbalanced equation for the decomposition reaction of solid chromium
The numbers of atoms of elements on the left side of the reaction are not equal to that on the right side of the reaction. So, the reaction is unbalanced.
A coefficient of
Therefore, the balanced equation for the decomposition reaction of solid chromium
The numbers of atoms of each element on the left side of the reaction are equal to that on the right side of the reaction. Therefore, the reaction is balanced.
The balanced equation for the decomposition reaction of solid chromium
(b)
Interpretation:
The balanced equation for the decomposition reaction of solid lead
Concept introduction:
A chemical reaction is a process in which rearrangement of atoms or ions takes place between two reacting species. A balanced chemical equation represents an equation in which all the reactants and products are written with their stoichiometric coefficient and physical states. The number of atoms of an element on both sides of the equation is equal.
Answer to Problem 40E
The balanced equation for the decomposition reaction of solid lead
Explanation of Solution
Solid lead
The unbalanced equation for the decomposition reaction of solid lead
The numbers of atoms of elements on the left side of the reaction are not equal to the right side of the reaction. Therefore, the reaction is unbalanced.
A coefficient of
Therefore, the balanced equation for the decomposition reaction of solid lead
The numbers of atoms of each element on the left side of the reaction are equal to that on the right side of the reaction. Therefore, the reaction is balanced.
The balanced equation for the decomposition reaction of solid lead
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Chapter 7 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
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