Textbook Question
Propane gas, C3H8, undergoes combustion with oxygen gas to produce carbon dioxide and water gases. Propane has a density of 2.02 g/L at room temperature.
a. Write the balanced chemical equation.
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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
Decomposition
B
Double Displacement
C
Combination
D
Combustion
Verified step by step guidance1
Identify the reactants and products in the chemical equation: The reactants are 3 Ca(OH)_2 (aq) and Al_2(SO_4)_3 (aq), and the products are 3 CaSO_4 (s) and 2 Al(OH)_3 (s).
Recognize the states of matter: The reactants are in aqueous form (aq), and the products are in solid form (s), indicating a precipitation reaction.
Understand the concept of double displacement reactions: In a double displacement reaction, the cations and anions of two different compounds switch places, forming two new compounds.
Analyze the exchange of ions: In this reaction, the calcium ions (Ca^2+) from calcium hydroxide (Ca(OH)_2) combine with sulfate ions (SO_4^2-) from aluminum sulfate (Al_2(SO_4)_3) to form calcium sulfate (CaSO_4), and the aluminum ions (Al^3+) combine with hydroxide ions (OH^-) to form aluminum hydroxide (Al(OH)_3).
Conclude the type of reaction: Since the ions are exchanged between the two reactants to form two new products, this is a double displacement reaction.
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