
Concept explainers
(a)
Interpretation:
The reaction of sodium chlorate to sodium chloride and oxygen has to be classified as combination, decomposition, single replacement or double replacement reactions. The reaction has to be balanced.
Concept Introduction:
Combination reactions: In these reactions, the reactant combines to form a single product. This type of reaction occurs between either two elements, an element and a compound or two compounds. It is recognized easily because it involves two reactants and only a single product.
Decomposition reactions: Decomposition reactions are the opposite of a combination reaction because decomposition reaction involves the breaking apart of a substance into simpler substances. Such a reaction is easy to recognize because there is one reactant and more than one product.
Single replacement reactions: A reaction where an element in a compound is replaced by another element is called single replacement reaction or a substitution reaction. It generally involves between a dilute solution of an acid and a metal.
Double replacement reactions: This type of reactions occurs when the cation and the anions switch between two reactants to form new products. In order for the reaction to occur, one of the products is usually a solid precipitate, a gas or a molecular compound.
(b)
Interpretation:
The reaction of formation of calcium sulphate from calcium oxide and sulphite has to be classified as combination, decomposition, single replacement or double replacement reactions. The reaction has to be balanced.
Concept Introduction:
Refer to part (a).
(c)
The reaction of formation of hydrogen chloride and silver from silver chloride and hydrogen has to be classified as combination, decomposition, single replacement or double replacement reactions. The reaction has to be balanced.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The reaction of formation of mercury (II) acetate and nitric acid from mercury (III) nitrate and acetic acid has to be classified as combination, decomposition, single replacement or double replacement reactions. The reaction has to be balanced.
Concept Introduction:
Refer to part (a).

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Chapter 10 Solutions
General Chemistry
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