Question 25
HardOriginal questionWhen an acid reacts completely with a base, the products are
Show the answer and explanation
CorrectNot quiteAnswer A
Correct answer: A
Explanation
This is neutralisation: acid + base → salt + water.
For example, HCl + NaOH → NaCl + H₂O.
Worth noting
Hydrogen gas comes from an acid reacting with a metal; carbon dioxide comes from an acid reacting with a carbonate.
- Concept
- Neutralisation
- Typical timeTypical
- 90 s
- Your timeYours
- —
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