Choose the products that complete the reaction. The chemical equation may not be balanced. [tex]HC _2 H _3 O _2+ Ca ( OH )_2 \rightarrow[/tex] ? A. [tex]Ca \left( C _2 H _3 O _2\right)_2+ H _2 O[/tex] B. [tex]Ca \left( C _2 H _3 O _2\right)_2+ CO _2+ H _2 O[/tex] C. [tex]Ca \left( C _2 H _3 O _2\right)_2+ H _2[/tex]
Answer (2)
Acetic acid reacts with calcium hydroxide in an acid-base neutralization.
The products of the reaction are calcium acetate and water.
The balanced chemical equation is: 2 H C 2 H 3 O 2 + C a ( O H ) 2 → C a ( C 2 H 3 O 2 ) 2 + 2 H 2 O .
Therefore, the correct products are C a ( C 2 H 3 O 2 ) 2 + H 2 O . C a ( C 2 H 3 O 2 ) 2 + H 2 O
Explanation
Identifying the Reaction Type and Products The reaction between acetic acid ( H C 2 H 3 O 2 ) and calcium hydroxide ( C a ( O H ) 2 ) is an acid-base neutralization reaction. The products of this reaction are calcium acetate and water.
Writing the Balanced Chemical Equation The balanced chemical equation for this reaction is: 2 H C 2 H 3 O 2 + C a ( O H ) 2 → C a ( C 2 H 3 O 2 ) 2 + 2 H 2 O
Determining the Correct Products Therefore, the correct products are calcium acetate ( C a ( C 2 H 3 O 2 ) 2 ) and water ( H 2 O ).
Selecting the Correct Option The first option, C a ( C 2 H 3 O 2 ) 2 + H 2 O , matches the products of the reaction.
Examples
Acid-base neutralization reactions are commonly used in everyday life. For example, antacids use bases like calcium carbonate to neutralize excess stomach acid (hydrochloric acid), relieving heartburn. Similarly, in agriculture, farmers use lime (calcium hydroxide) to neutralize acidic soils, creating a more favorable environment for plant growth. These reactions are essential in maintaining pH balance in various systems.
The reaction between acetic acid (HC₂H₃O₂) and calcium hydroxide (Ca(OH)₂) forms calcium acetate (Ca(C₂H₃O₂)₂) and water (H₂O). The correct answer is option A: Ca(C₂H₃O₂)₂ + H₂O. This reaction is an example of acid-base neutralization.
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