Textbook Question
Identify the type of reaction for each of the following as combination, decomposition, single replacement, double replacement, or combustion:
d. Zinc replaces copper in Cu(NO3)2.
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5. Classification & Balancing of Chemical Reactions
Types of Chemical Reactions
Multiple Choice
Indicate the type of chemical reaction taking place from the following equation:
A
Combination
B
Combustion
C
Single Displacement
D
Decomposition
Verified step by step guidance1
Identify the reactants and products in the chemical equation: The reactants are 3 Mg (s) and Fe2O3 (aq), and the products are 2 Fe (s) and 3 MgO (aq).
Determine the type of reaction by analyzing the changes in the reactants and products: In this reaction, magnesium (Mg) is replacing iron (Fe) in the compound Fe2O3 to form MgO and elemental iron.
Recognize the pattern of a single displacement reaction: A single displacement reaction occurs when an element reacts with a compound, displacing another element from it. Here, Mg displaces Fe from Fe2O3.
Compare with other types of reactions: Combination reactions involve two or more substances forming a single product, decomposition reactions involve a single compound breaking down into two or more products, and combustion reactions involve a substance reacting with oxygen to produce heat and light. None of these patterns match the given reaction.
Conclude that the reaction is a single displacement reaction based on the displacement of Fe by Mg in the compound Fe2O3.
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