
(a)
Interpretation:
Chemical equation given below has to be balanced and name of reactants, and products has to be given.
Concept Introduction:
Steps followed to obtain balanced chemical equation:
- Chemical formulas of the products and reactants are written. Individual reactants and products are separated using plus sign while the reactants are separated from products by an arrow.
- Elements that appear only once on the reactant side and product side is balanced first. Subscript should not be changed in chemical formula while balancing coefficients can be added until the total number of atoms of an element becomes equal on reactant and product side.
- Other elements present also balanced in the same way by adding balancing coefficients.
- Final check has to be performed in order to check that each element that is present in the chemical equation is balanced.
- Symbols have to be added for solids, liquids gases and aqueous solutions to indicate the physical state of the known reactants and products.
(a)

Explanation of Solution
Chemical equation given is shown below.
Above chemical equation is not balanced. There are two chlorine atoms on the left side of the equation while there are three chlorine atoms on right side of equation. Adding coefficient
In the above equation, there is one aluminium atom in reactant side while there are two aluminium atoms on the product side. Adding coefficient
Name of reactants and products is given below.
(b)
Interpretation:
Chemical equation given below has to be balanced and name of reactants, and products has to be given.
Concept Introduction:
Refer part (a).
(b)

Explanation of Solution
Chemical equation given is shown below.
Above chemical equation is not balanced. There are two oxygen atoms on the left side of the equation while there are three oxygen atoms on right side of equation. Adding coefficient
In the above equation, there is one aluminium atom in reactant side while there are four aluminium atoms on the product side. Adding coefficient
Name of reactants and products is given below.
(c)
Interpretation:
Chemical equation given below has to be balanced and name of reactants, and products has to be given.
Concept Introduction:
Refer part (a).
(c)

Explanation of Solution
Chemical equation given is shown below.
Above chemical equation is not balanced. There are two chlorine atoms on the left side of the equation while there is only one chlorine atom on the right side of the equation. Adding coefficient
In the above chemical equation, there is one sodium atom on the left side of the equation while two sodium atoms are present on right side of the equation. Adding coefficient
Name of reactants and products is given below.
(d)
Interpretation:
Chemical equation given below has to be balanced and name of reactants, and products has to be given.
Concept Introduction:
Refer part (a).
(d)

Explanation of Solution
Chemical equation given is shown below.
Above chemical equation is not balanced. There are two oxygen atoms on the left side of the equation while there is only one oxygen atom on right side of equation. Adding coefficient
In the above equation, there is one beryllium atom in reactant side while there are two beryllium atoms on the product side. Adding coefficient
Name of reactants and products is given below.
(e)
Interpretation:
Chemical equation given below has to be balanced and name of reactants, and products has to be given.
Concept Introduction:
Refer part (a).
(e)

Explanation of Solution
Chemical equation given is shown below.
Above chemical equation is not balanced. There is one potassium atom on the reactant side while there are two potassium atoms on the product side. Adding coefficient
Name of reactants and products is given below.
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Chapter 3 Solutions
General Chemistry
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