Sodium hydroxide and hydrochloric acid react to form sodium chloride and…
2023
Sodium hydroxide and hydrochloric acid react to form sodium chloride and water. Which reaction is this?
Answer: A. Neutralization — ConceptA neutralization reaction is an acid–base reaction in which hydrogen ions from the acid and hydroxide ions from the base form water. The remaining ions…
- A.
Neutralization
- B.
Dissolution
- C.
Combination
- D.
More than one of the above
- E.
None of the above
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Show answer & explanation
Correct answer: A
Concept
A neutralization reaction is an acid–base reaction in which hydrogen ions from the acid and hydroxide ions from the base form water. The remaining ions form a salt; the general pattern is acid + base → salt + water.
Application
Identify the reactants: hydrochloric acid is an acid, while sodium hydroxide is a base.
HCl + NaOH → NaCl + H2O.
Match the products with the general pattern: sodium chloride is the salt and water is formed from the acid–base reaction.
Cross-check and contrast
Dissolution is the dispersal of a solute in a solvent; it does not by itself name this acid–base reaction pattern.
A combination reaction produces a single product, whereas this equation produces sodium chloride and water as two products.
Result
Therefore, the reaction is neutralization.