Question

how do you the particles of matter are small? explain with an activity​

Answer 1

Answer:

This very small crystals of KMnO4 change color of whole water. - This is because each crystal of potassium permanganate breaks into smaller & smaller particles and react independently with water. - From this we can conclude that each substance is made of much smaller particles

Explanation:

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Answer 2

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Characteristics of Particles of Matter

These are the four main characteristics of particles of matter :

1. Particles of matter are very tiny in size.
2. They have spaces between them.
3. Particles of matter move constantly.
4. They are attracted towards each

other.

Particles of matter are very tiny

$\huge\pink{Experiment}$

1. Take a beaker and fill it with 10 mL of water and add two to three crystals of potassium permanganate.
2. Now take few measuring cylinders and label them as 1,2,3, 4 … and so on.
3. Next, fill these cylinders with 50 mL of water. Transfer 5 mL of the solution to the measuring cylinder 1 which has 50 mL of water from the beaker. Mix the water and the solution.
4. Now, take out 5 mL of the solution from cylinder 1 using a pipette and transfer it into measuring cylinder 2. Shake this mixture.
5. Take out 5 mL of the solution from cylinder 2 using a pipette and transfer it into measuring cylinder 3. Shake this mixture.
6. Carry on this process of dilution of the solution in a similar manner.

$\huge\pink{Observation}$

The solution held in the various measuring cylinders are all colored, even though the color gets fainter and fainter with successive dilution.

$\huge\pink{Conclusion}$

It can be concluded that a small crystal of potassium permanganate contains a very large number of tiny particulate matter showing the properties of the parent substance.

Note:The size of particulate matter in any form is of the order 10-9 m.

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