Which of the following reactions is a double replacement reaction?
Understand the Problem
The question is asking which one of the displayed chemical reactions is classified as a double replacement reaction. This involves identifying the reaction where the positive and negative ions of two compounds exchange partners.
Answer
Pb(NO3)2 + 2KI → 2KNO3 + PbI2
The final answer is Pb(NO3)2 + 2KI → 2KNO3 + PbI2.
Answer for screen readers
The final answer is Pb(NO3)2 + 2KI → 2KNO3 + PbI2.
More Information
A double replacement reaction occurs when parts of two ionic compounds are exchanged, making two new compounds. These reactions are typically either precipitation or acid-base neutralization reactions.
Tips
A common mistake is misidentifying synthesis or decomposition reactions as double replacement since they involve ionic compounds.
Sources
- 11.9: Double Replacement Reactions - Chemistry LibreTexts - chem.libretexts.org
- Double Replacement Reactions | Khan Academy - khanacademy.org
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