Chemistry · Acids, Bases and Salts
In a laboratory demonstration, a student adds hydrochloric acid to sodium hydrogencarbonate and collects the gas. How can the student confirm it is carbon dioxide?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It turns limewater milky.✓
- 2It supports combustion.
- 3It extinguishes a burning splint.
- 4It forms a blue precipitate.
Correct answer
It turns limewater milky.
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