Concept explainers
Balance each of the following chemical equations.
msp;
msp;
msp;
msp;
msp;
msp;
msp;
(a)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided reaction is:
The most complicated molecule is not clear, so we start arbitrarily. If we place a coefficient of 2NaCl, we get a balanced equation.
(b)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The given unbalanced equation is:
We start with placing 3 before Fe and 4 before H2 O and H2 We get the balanced chemical reaction as follows:
(c)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The given unbalanced equation is:
We start by balancing HCl. If we place a coefficient 2 before HCl
If we place 2 before H2 O, we get a balanced chemical reaction as follows:
(d)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided equation is:
If we place a coefficient of 2 H2 O and HBr, we get a balanced equation.
(e)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided equation is:
We start with NaOH. To balance Na. If we place a coefficient of 3 before NaOH
To balance oxygen, we place 3 before H2 O. We get the balanced chemical reaction as follows:
(f)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided reaction is:
To balance oxygen, we can start by placing 2 before NaNO2 and NaNO3. Now, we already have a balanced equation.
(g)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided reaction is:
We start with balancing
Now we can place 4 before NaOH and 2 before H2 O. We have a balanced equation
(h)
Interpretation:
The given chemical equation is to be balanced.
Concept Introduction:
In a balanced chemical reaction, the number of similar type of elements on both sides of the reaction is equal. To balance an unbalanced equation, the coefficients that are present before the compounds are changed but the subscripts in the formulas are not changed.
Answer to Problem 40QAP
Explanation of Solution
The provided reaction is:
Now we place 4 before Si and we have a balanced equation.
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Chapter 6 Solutions
Student Solutions Manual For Zumdahl/decoste's Introductory Chemistry: A Foundation, 8th Edition
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