
(a)
Interpretation:
The type of the given reaction needs to be predicted.
Concept Introduction:
A
This is also known as neutralisation reaction.
(a)

Answer to Problem 55A
The given reaction is a type of acid base reaction which is shown below:
Explanation of Solution
The given reaction is a type of acid base reaction which is shown below:
When a strong acid (HNO3) reacts with strong base (KOH) it will produce salt (KNO3) and water (H2O) in acid base reaction.
(b)
Interpretation:
The type of the given reaction needs to be determined.
Concept Introduction:
When two soluble salts are combined to form insoluble salt is known as precipitation reaction.
(b)

Answer to Problem 55A
The given reaction is a type of precipitation reaction which is shown below:
Explanation of Solution
The given precipitation reaction is shown below:
When calcium nitrate reacts with potassium sulfate, then it will form precipitaes of calcium sulfate and potassium nitrate.
(c)
Interpretation:
The type of the given reaction needs to be predicted.
Concept Introduction:
When an atom combines with oxygen and given heat is known as combustion reaction
When two or more compounds combine to form a more complexed compound is known as direct combination reaction or synthesis.
(c)

Answer to Problem 55A
The given reaction is a type of combustion or synthesis reaction which is shown below:
Explanation of Solution
The given combustion or synthesis reaction is shown below:
When a carbon reacts with oxygen then it will form a carbon dioxide gas.
(d)
Interpretation:
The type of the given reaction needs to be predicted.
Concept Introduction:
When a single compound breaks down into two or more simpler compounds is known as decomposition reaction.
(d)

Answer to Problem 55A
The given reaction is a type of decomposition reaction which is shown below:
Explanation of Solution
The given decomposition reaction is shown below:
When H2O compound breaks down into H2 and oxygen then this type of reaction is known as decomposition reaction.
Chapter 8 Solutions
World of Chemistry, 3rd edition
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