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Concept explainers
(a)
Interpretation:
The given equation has to be written complete and balanced
Concept Introduction:
Balancing the equation:
- There is a Law for conversion of mass in a
chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants. - The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
- First write the reaction from the given information.
- Then count the number of atoms of each element in reactants as well as products.
- Finally obtained values could place it as coefficients of reactants as well as products.
- Loss of electron and loss of Hydrogen in a compound is oxidation - the compound is oxidized. Gain of electron, gain of Oxygen in a compound is reduction - the compound is reduced.
Oxidation reduction and reduction reaction occur simultaneously in same reaction.
To Write: The given equation complete and balanced.
![Check Mark](/static/check-mark.png)
Answer to Problem 21.104QP
The complete and balanced equation for the given equation is:
Explanation of Solution
Given Equation:
Complete Equation:
A complete equation will have same elements present on both sides of the equation.
The above equation can be completed by writing as follows,
Balancing the equation:
A balanced equation will have same elements and same number of atoms of each side of the reaction.
List the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
1 |
|
2 |
1 |
|
2 |
1 |
|
1 |
2 |
|
1 |
To balance the
Again, list the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
2 |
|
2 |
2 |
|
2 |
2 |
|
2 |
1 |
|
1 |
2 |
|
2 |
The number of atoms on both sides of the reaction are same. Therefore, the above equation is a balanced one.
Hence, the complete and balanced form of the given equation is written as:
The complete and balanced equation of the given equation is written as:
(b)
Interpretation:
The given equation has to be written complete and balanced
Concept Introduction:
Balancing the equation:
- There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
- The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
- First write the reaction from the given information.
- Then count the number of atoms of each element in reactants as well as products.
- Finally obtained values could place it as coefficients of reactants as well as products.
- Loss of electron and loss of Hydrogen in a compound is oxidation - the compound is oxidized. Gain of electron, gain of Oxygen in a compound is reduction - the compound is reduced.
- Oxidation reduction and reduction reaction occur simultaneously in same reaction.
To Write: The given equation complete and balanced.
![Check Mark](/static/check-mark.png)
Answer to Problem 21.104QP
The complete and balanced equation of the given equation is:
Explanation of Solution
Given Equation:
Complete equation:
A complete equation will have same present on both sides of the equation.
The above equation can be completed by writing as follows,
Balancing the equation:
A balanced equation will have same elements and same number of atoms of each side of the reaction.
List the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
4 |
|
4 |
1 |
|
1 |
1 |
|
1 |
The number of atoms on both sides of the reaction are same. Therefore, the above equation is a balanced one.
Hence, the complete and balanced form of the given equation is written as:
The complete and balanced equation of the given equation is written as:
(c)
Interpretation:
The given equation has to be written complete and balanced
Concept Introduction:
Balancing the equation:
- There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
- The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
- First write the reaction from the given information.
- Then count the number of atoms of each element in reactants as well as products.
- Finally obtained values could place it as coefficients of reactants as well as products.
- Loss of electron and loss of Hydrogen in a compound is oxidation - the compound is oxidized. Gain of electron, gain of Oxygen in a compound is reduction - the compound is reduced.
- Oxidation reduction and reduction reaction occur simultaneously in same reaction.
To Write: The given equation complete and balanced.
![Check Mark](/static/check-mark.png)
Answer to Problem 21.104QP
The complete and balanced equation for the given equation is:
Explanation of Solution
Given Equation:
Complete Equation:
A complete equation will have same elements present on both sides of the equation.
The above equation can be completed by writing as follows,
Balancing the equation:
A balanced equation will have same elements and same number of atoms of each side of the reaction.
List the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
1 |
|
2 |
2 |
|
4 |
To balance the
Again, list the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
2 |
|
2 |
4 |
|
4 |
The number of atoms on both sides of the reaction are same. Therefore, the above equation is a balanced one.
Hence, the complete and balanced form of the given equation is written as:
The complete and balanced equation of the given equation is written as:
(d)
Interpretation:
The given equation has to be written complete and balanced
Concept Introduction:
Balancing the equation:
- There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
- The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
- First write the reaction from the given information.
- Then count the number of atoms of each element in reactants as well as products.
- Finally obtained values could place it as coefficients of reactants as well as products.
- Loss of electron and loss of Hydrogen in a compound is oxidation - the compound is oxidized. Gain of electron, gain of Oxygen in a compound is reduction - the compound is reduced.
- Oxidation reduction and reduction reaction occur simultaneously in same reaction.
To Write: The given equation complete and balanced.
![Check Mark](/static/check-mark.png)
Answer to Problem 21.104QP
The complete and balanced equation for the given equation is:
Explanation of Solution
Given Equation:
Complete Equation:
A complete equation will have same elements present on both sides of the equation.
The above equation can be completed by writing as follows,
Balancing the equation:
A balanced equation will have same elements and same number of atoms of each side of the reaction.
List the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
3 |
|
3 |
1 |
|
2 |
1 |
|
2 |
1 |
|
1 |
To balance the
Again, list the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
3 |
|
3 |
2 |
|
2 |
2 |
|
2 |
1 |
|
1 |
The number of atoms on both sides of the reaction are same. Therefore, the above equation is a balanced one.
Hence, the complete and balanced form of the given equation is written as:
The complete and balanced equation of the given equation is written as:
(e)
Interpretation:
The given equation has to be written complete and balanced
Concept Introduction:
Balancing the equation:
- There is a Law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
- The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
- First write the reaction from the given information.
- Then count the number of atoms of each element in reactants as well as products.
- Finally obtained values could place it as coefficients of reactants as well as products.
- Loss of electron and loss of Hydrogen in a compound is oxidation - the compound is oxidized. Gain of electron, gain of Oxygen in a compound is reduction - the compound is reduced.
- Oxidation reduction and reduction reaction occur simultaneously in same reaction.
To Write: The given equation complete and balanced.
![Check Mark](/static/check-mark.png)
Answer to Problem 21.104QP
The complete and balanced equation for the given equation is:
Explanation of Solution
Given Equation:
Complete Equation:
A complete equation will have same elements present on both sides of the equation.
The above equation can be completed by writing as follows,
Balancing the equation:
A balanced equation will have same elements and same number of atoms of each side of the reaction.
List the atoms of the equation in a table and check for the equal number of atoms present on either side of the reaction.
Reactant side | Atom | Product side |
1 |
|
1 |
4 |
|
4 |
2 |
|
2 |
1 |
|
1 |
The number of atoms on both sides of the reaction are same. Therefore, the above equation is a balanced one.
Hence, the complete and balanced form of the given equation is written as:
The complete and balanced equation of the given equation is written as:
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Chapter 21 Solutions
General Chemistry - Standalone book (MindTap Course List)
- (6 pts - 2 pts each part) Although we focused our discussion on hydrogen light emission, all elements have distinctive emission spectra. Sodium (Na) is famous for its spectrum being dominated by two yellow emission lines at 589.0 and 589.6 nm, respectively. These lines result from electrons relaxing to the 3s subshell. a. What is the photon energy (in J) for one of these emission lines? Show your work. b. To what electronic transition in hydrogen is this photon energy closest to? Justify your answer-you shouldn't need to do numerical calculations. c. Consider the 3s subshell energy for Na - use 0 eV as the reference point for n=∞. What is the energy of the subshell that the electron relaxes from? Choose the same emission line that you did for part (a) and show your work.arrow_forwardNonearrow_forward(9 Pts) In one of the two Rare Earth element rows of the periodic table, identify an exception to the general ionization energy (IE) trend. For the two elements involved, answer the following questions. Be sure to cite sources for all physical data that you use. a. (2 pts) Identify the two elements and write their electronic configurations. b. (2 pts) Based on their configurations, propose a reason for the IE trend exception. c. (5 pts) Calculate effective nuclear charges for the last electron in each element and the Allred-Rochow electronegativity values for the two elements. Can any of these values explain the IE trend exception? Explain how (not) - include a description of how IE relates to electronegativity.arrow_forward
- Please explain thoroughly and provide steps to draw.arrow_forwardAs you can see in the picture, the instrument uses a Xe source. Given that the instrument is capable of measuring from 200-800nm, if Xe was not used, what other source(s) could be used? Refer to figure 7-3. How many monochrometers does this instrument have? Why? Trace the light as it goes from the Xenon lamp all the way to the circle just slightly to the right and a little bit down from S4. What do you think that circle is? In class we talked about many types of these, which kind do you think this one is for a fluorimeter? Why? Explain. What is/are some strategy(ies) that this instrument has for dealing with noise that you see present in the optics diagram? Why does a fluorescence cuvette have to be clear on four sides?arrow_forwardProvide steps and thoroughly solve.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
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