Question

1. the formula of slaked lime is: cao ca(oh)₂ cah₂ caho₂ 45. sodium oxide has the formula: nao na₂o na₂o₂ na₂o₃

Explanation:

Slaked lime is calcium hydroxide, with the chemical formula $Ca(OH)_2$. Sodium has a +1 oxidation state and oxygen has a -2 oxidation state in simple oxides. To balance the charges, the formula for sodium oxide is $Na_2O$.

Answer:

1. B. $Ca(OH)_2$
2. B. $Na_2O$