Multiple choice

I have a sample of unknown liquid. Which physical property will help determine that it's H2O?

  1. The color of the liquid

  2. The volume of the liquid

  3. The mass of the liquid

  4. The boiling point of the liquid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Boiling point is an intensive physical property, meaning it is characteristic of the substance itself and does not change regardless of the sample size. Mass and volume are extensive properties that change with the amount of liquid, and color alone is not a definitive identifier.

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