When calcium hydroxide powder is placed into a hydrochloric acid solution, aqueous calcium chloride and water are formed?

Answer: yes, when calcium hydroxide powder is placed into a hydrochloric acid solution, aqueous calcium hydroxide and water are formed.

Explanation:

1) Calcium hydroxide is a base whose chemical formula is: Ca (OH) ₂

2) Hydrochloric acid is the acid with chemical formula HCl

3) Acids and bases react in a double replacement reaction forming salt plus water: Acid + Base → salt + water

4) The specific chemical equation for these reactants is:

Ca (OH) ₂ (s) + 2HCl (aq) → CaCl₂ (aq) + 2H₂O (l)

5) CaCl₂ is calcium chloride, a salt, and H₂O is water