Physical Science / Unit 6: Solutions, Acids and Bases
6.6 Neutralization
Notes
A neutralization reaction occurs when an acid reacts with a base to produce a salt and water.
- $\text{HCl} + \text{NaOH} \rightarrow \text{NaCl} + \text{H}_2\text{O}$.
- The $\text{H}^+$ from the acid and $\text{OH}^-$ from the base combine to make water.
- When the right amounts are mixed, the pH moves toward 7.
- Examples: antacids neutralize stomach acid; baking soda on an acid spill; lime added to acidic soil.
Practice
What are the products of a neutralization reaction?
An acid and base make a salt plus water.
Which would help treat acid indigestion?
Antacids contain bases that react with stomach acid.
HCl is mixed with KOH in equal, balanced amounts. The salt formed is:
Potassium from the base combines with chloride from the acid.
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