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Question
When a crystal of potassium permanganate is placed in a beaker, its purple colour spreads throughout the water. What does this observation tell us about the nature of potassium permanganate and water?
Solution
The particles of potassium permanganate and water mix on their own without any stirring. Two conclusions can be drawn from this phenomenon. These are:
- Potassium permanganate and water are made up of very tiny particles.
- Water particles have large spaces between them which are occupied by the tiny potassium permanganate particles.
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