When NaOH(aq) reacts with CaBr2(aq), it forms a double displacement reaction. In this reaction, the cations and anions of the reactants switch partners to form new compounds.
The balanced chemical equation for this reaction is:
2NaOH(aq) + CaBr2(aq) → Ca(OH)2(s) + 2NaBr(aq)
Explanation:
1. NaOH dissociates in water to form Na+ and OH- ions.
2. CaBr2 dissociates in water to form Ca2+ and 2Br- ions.
3. During the reaction, the Na+ ion combines with the Br- ion to form NaBr.
4. The Ca2+ ion combines with the OH- ion to form Ca(OH)2, which is insoluble and precipitates out of the solution as a solid.
Therefore, when NaOH(aq) reacts with CaBr2(aq), the products formed are solid calcium hydroxide (Ca(OH)2) and aqueous sodium bromid