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Seperating mixtures and Particle Theory of Matter

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Neil Tewari

on 9 January 2015

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Transcript of Seperating mixtures and Particle Theory of Matter

The difference between a mechanical mixture and a solution is that if you look closely you can see the components of the the mechanical mixture but when you look at a solution it looks the same.
Explain the differences between a mechanical mixture and a solution
Separating mixtures
and the Particle Theory of Matter

Mechanical mixtures
Examples
Use the terms “solute” and “solvent” to explain the difference between
a dilute and concentrated solution.
Dilute: When a substance is weak and the solute does not dissolve well in to the solvent. (E.g. when you put a teabag into a cup of hot water for two minutes and when it’s less concentrated)
A Dilute substance is a less concentrated and weak substance rather than a concentrated solution that is strong and is more concentrated.
Concentrated solution: When a substance is strong and the solute dissolves into the solvent heavily. (E.g. when you put a teabag into a cup of hot water for ten minutes when it’s more concentrated than the dilute one)
Use the particle theory of matter to explain why steam, ice, water are all considered to be the same substance
.
Solid: when molecules are close together to form a shape.

Liquid: when molecules are close enough to stay together to form a substance.

Gas: when molecules are far apart from each other and float away from each other.
Steam, ice and water are all considered as the same substance.

Why? These are the same because the particles are identical for all these states of matter and they are separated, together or slightly together.
Ketchup appears to be uniformly red in colour and consistent in texture, but it is classified as a mechanical mixture rather than a solution. Use the particle theory of matter to explain why this is so.
Ketchup is mechanical mixture because when you have homemade ketchup, you can see the tomato chunks but they are really tiny.
Solutions
The difference between pure substances and mixture.
The Particle theory matter says that each type matter has its unique matter. If you only have one type of matter you have pure a substances. When you have a substances with two or more different types of matter you have mixture.
Examples
Mixtures:
sea water
grass
humans
chips
pencil
car
air
Pure substances:
pure Water
coal
diamonds
iron
gold
oxygen

Particle theory of matter
The particle theory of matter is is a set of rules that ever type of matter follows
These rules are:
Matter is made up of tiny particles (Atoms and Molecules)
Particles of Matter are in constant motion.
Particles of Matter have forces of attraction between them.
There are empty spaces between the particles of matter.
Each substance has unique particles that are different from the particles of other substances
Temperature affects the speed of the particles. The higher the temperature, the faster the speed of the particles.
On hot summer day, a glass of cold water warms quickly. However, if an ice cube is added, the same amount of water will not warm up until the ice cube is melted. Explain why this is so using the particle theory of matter.
This happen because without the ice the water absorbs energy from the sun thus causing the particles move faster and the water to warm as the particle theory suggest . When you add the ice cube it absorbs the energy from the water as the sun emits it. When the ice cube absorbs the energy from the water it warms and the particle speed up this causes the ice cube to become liquid and at this point nothing will absorb the energy emitting from sun since everything is the same temperature. If there is nothing to absorb the energy the water will warm.
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