A balanced reaction that produces calcium hydroxide (Ca(OH)2) can be represented as follows:
CaO + H2O → Ca(OH)2
In this reaction, calcium oxide (CaO) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2). The balanced equation shows that one molecule of CaO reacts with one molecule of H2O to produce one molecule of Ca(OH)2.