Physics · Chemical Reactions and Energy
What primary observation will you make regarding temperature when a few drops of sodium hydroxide (NaOH) solution are added to a test tube containing hydrochloric acid (HCl)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A distinct brown precipitate forms at the bottom.
- 2The test tube becomes noticeably warm.✓
- 3It gives off a gas with a pungent smell.
- 4The solution changes color dramatically.
Correct answer
The test tube becomes noticeably warm.
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