
Concept explainers
(a)
Interpretation: The balanced equation corresponding to the statement when hydrogen sulfide forms sulfur dioxide and water vapor on reaction with oxygen should be written.
Concept introduction: In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.
In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the
After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical
(a)

Answer to Problem 3.81P
The balanced equation is written as follows:
Explanation of Solution
The formula ofgallium oxide is
Since, left side has 2
Multiple the entire equation by 2.
Since above equation has equal atoms on right and left side so the equation is now balanced.
(b)
Interpretation: The balanced equation corresponding to statement when potassium chlorate is heated to form two potassium chloride and potassium perchlorate should be written.
Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.
In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.
After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.
(b)

Answer to Problem 3.81P
The balanced equation is written as follows:
Explanation of Solution
The formula ofpotassium chlorate and potassium perchlorate are
Since, left side has 3
Since above equation has equal atoms on each side so the equation is now balanced.
(c)
Interpretation: The balanced equation corresponding to the statement that when hydrogen gas is passed on
Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.
In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.
After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.
(c)

Answer to Problem 3.81P
The balanced equation is written as follows:
Explanation of Solution
The formula ofcalcium chloride, sodium phosphate are
The unbalanced equation that needs to be balanced is as follows:
Since, left side has 3
Place 3 as the coefficient of
Place 2 as the coefficient of
Since above equation has equal atoms on right and left side so the equation is now balanced.
(d)
Interpretation: The balanced equation corresponding to the statement that when ethane undergoes combustion should be written.
Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.
In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.
After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.
(d)

Answer to Problem 3.81P
The balanced equation is written as follows:
Explanation of Solution
The unbalanced equation that needs to be balanced is as follows:
Place 3 as coefficient of
Since, left side has 2
Multiple the entire equation by 2.
Since above equation has equal atoms on right and left side so the equation is now balanced.
(e)
Interpretation: The balanced equation corresponding to the statement hen
Concept introduction:In accordance with law of conservation of mass it is suggested total amount of reactants consumed is equal to the total amount of products formed in any balanced equation.
In order to balance an equation, one starts with the most complex chemical species and then place the appropriate coefficient so as to make the stoichiometric coefficient equal on each side.
After proper adjustment of coefficient, the atoms are checked for an equal number on each side and finally, the physical states of matter are written in parenthesis.
(e)

Answer to Problem 3.81P
The balanced equation is written as follows:
Explanation of Solution
The unbalanced equation when
Place 3 as coefficient of
Place 2 as coefficient of
Place 2 as coefficient of
Since above equation has equal atoms on right and left side so the equation is now balanced.
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Chapter 3 Solutions
Principles of General Chemistry
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