Question

Chapter name
Matter and its composition

How can you show the existence of motion in molecules explain with an example​

Answer 1

Answer:

It is generally thought that molecules in a gas and a liquid are moving randomly at a very high speed. We cannot watch those motions directly, but, if we can observe them in any indirect way, we could confirm the existence of molecule. This has been enabled by the observation of Brownian motion.

Explanation:

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Answer 2

Answer:

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.