Question

what type of reaction is shown below?
2 nabr (aq) + cl₂ (g) → 2 nacl (s) + br₂ (l)
single replacement
double replacement
synthesis
decomposition

Explanation:

Step1: Analyze single replacement reaction

A single replacement reaction has the form \(A + BC→AC + B\).

Step2: Match the given reaction

In \(2NaBr_{(aq)}+Cl_{2(g)}→2NaCl_{(s)}+Br_{2(l)}\), \(Cl_2\) ( \(A\) ) replaces \(Br\) ( \(B\) ) in \(NaBr\) ( \(BC\) ) to form \(NaCl\) ( \(AC\) ) and \(Br_2\) ( \(B\) ).

Step3: Analyze other reaction types

• Double - replacement: \(AB + CD→AD+CB\). Not the case here.
• Synthesis: \(A + B→AB\). Not applicable.
• Decomposition: \(AB→A + B\). Not relevant.

Answer:

single replacement