Concept explainers
(a)
Interpretation:
A balanced equation of the given reaction should be determined.
Concept Introduction:
In a balanced
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
There is no clear choice for the most complicated molecule. We arbitrarily start with the elements of BaNO3 To balance oxygen, we place a coefficient of 2 before NaNO3. We have got a balanced equation.
(b)
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
There is no clear choice for the most complicated molecule. We arbitrarily start with the elements of PbCl2 To balance chlorine, we place a coefficient of 2 before KCl. We have got a balanced equation.
(c)
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
The most complicated molecule is C2 H5 OH because it contains the most elements (three). To balance C, we place a coefficient ot 2 before CO2.
To balance H, we place a coefficient of 3 before H2 O.
Finally, to balance O, we place a coefficient of 3 before O2.
We now have a balanced equation.
(d)
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
The most complicated molecule is Ca(OH)2 because it contains the most elements (three). We start with hydrogen. To balance H we place a coefficient of 2 before H2 O. We now have a balanced equation.
(e)
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
There is no clear choice for the most complicated molecule. We arbitrarily start with the elements of SrNO3 To balance oxygen we, place a coefficient ot 2 before HNO3. We have got a balanced equation.
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following equation is given:
It can be seen that all the elements are already balanced. Therefore, we have got a balanced equation.
(g)
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
The most complicated molecule is AsI3. We start with Iodine. To balance Iodine, we place a coefficient ot 3 before I2 and 2 before AsI3
To balance As, we place a coefficient of 2 before As.
We now have a balanced equation.
Interpretation:
A balanced equation of the given reaction should be determined.
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 present before the compounds are changed but not the subscripts in the formulas.
Answer to Problem 44QAP
Explanation of Solution
The following unbalanced equation is given:
There is no clear choice for the most complicated molecule. We arbitrarily start with the elements of K2 SO4 To balance K, we place a coefficient of 2 before KI.
We can balance the equation by giving I2 a cofficient of ½.
The coffecient should be an integer, therefore we should multiply the equation by 2. We have got a balanced equation.
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Chapter 6 Solutions
Introductory Chemistry: A Foundation
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