Atoms. Elements and Compounds, basics school notes

Here are some basic information from the first few chemistry lessons from the start of chemistry lesson. This includes the brownian motion, diffusion, phase changes definitions and a couple more things... these are my personal notes and research. I hope this helps you a little :)

Please let me know if i should keep doing these

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There is a very well-known theory, called the kinetic theory of matter.
This theory states that all matter is made up of a large number of atoms or
molecules which are in continuous motion.
These three states have different amounts of energy and they move
in different ways.
Gas particles are far apart from each other and move in high
speeds in any direction. (Gasses can be compressed).
Liquid particles are in random places and move freely, colliding
close together and vibrate.…read more

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Describe qualitatively the pressure of a gas in terms of the motion
of its molecules"
p=F/A (pressure= force/area)
The motion of molecules in a substance causes the collision of these
molecules on the wall of the container. This exerts a force on the walls of
this container, which we define as pressure.
The more particles there are, the greater the pressure. And the more
collisions with the surface, the greater the pressure.…read more

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If you decrease the volume of the container, the pressure increases as the
number of particles hitting each cm^3 of the container wall will increase.
Brownian Motion:
Brownian motion was named after a Scottish botanist (person who
studies plants), Robert Brown observed it in 1827.
He was watching grains of pollen suspended in water under a
microscope. He noticed that the grains were constantly moving in a
random manner.
In 1905, Einstein was able to explain how Brownian motion takes place.…read more

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