Slaked lime (Ca(OH)₂), is a commonly used flocculant. How can you prepare Ca(OH)2 from calcium metal?

• A. Ca(OH)₂ can be produced from Ca metal through the following series of reactions:1)   Ca(s) + O₂(g) → CaO₂(s)2)   CaO₂(s)+ H₂O(l) → Ca(OH)₂(aq)
• B. Ca(OH)₂ can be produced from Ca metal through the following series of reactions:1)   Ca(s) + O₂(g) → CaO(s)2)   CaO(s)+ H₂O(l) → Ca(OH)₂(aq)
• C. Ca(OH)₂ can be produced from Ca metal through the following reaction: Ca(s) + O₂(g) → Ca(OH)₂(aq)
• D. Ca(OH)₂ can be produced from Ca metal through the following reaction: Ca(s) + CaO(s) → Ca(OH)₂(aq)

Answer: (B)