Asked by knmk

Consider the word equation.

calcium hydroxide + hydrochloric acid mc012-1.jpg calcium chloride + water

Which is the corresponding formula equation?
Upper C a upper C l subscript 2 right arrow upper C a (s) plus upper C l subscript 2 (g).
Upper C a upper O (s) plus upper H subscript 2 upper O (l) right arrow upper C a (upper O upper H) subscript 2 (a q).
Upper N a upper O upper H (a q) plus 2 upper H upper C l (a q) right arrow upper N a upper C l (a q) plus 2 upper H subscript 2 upper O (l).
Upper C a (upper O H) subscript 2 (s) plus 2 upper H upper C l (l) right arrow upper C a upper C l subscript 2 (a q) plus 2 upper H subscript 2 upper O (l).

All Answers 1

Answered by GPT-5 mini AI
Ca(OH)2 (s) + 2 HCl (aq) -> CaCl2 (aq) + 2 H2O (l)

(This corresponds to the fourth option — the equation is balanced: 1 Ca, 2 Cl, 4 H, 2 O on each side.)