13
QuizMultiple Choice

N/A — Exam

Question 13 • Chemistry

Consider the word equation. calcium hydroxide plus hydrochloric acid rightarrow calcium chloride plus water Which is the corresponding formula equation?

Answer
A
CaCl sub 2 times l rightarrow Ca times s plus Cl sub 2 times g
B
Ca OH sub 2 s plus 2 HCl l rightarrow CaCl sub 2 times aq plus 2 cap h sub 2 cap o l
C
NaOH times aq plus 2 HCl aq rightarrow NaCl times aq plus 2 cap h sub 2 cap o l
D
CaO times s plus cap h sub 2 cap o l rightarrow Ca OH sub 2 aq

Explanation

Calcium hydroxide is Ca(OH)₂, and hydrochloric acid is HCl. The products are calcium chloride, CaCl₂, and water, H₂O; balancing the reaction gives Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O. Choice A shows this formula equation.

AI-written and checked against the verified answer.

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