Chemistry
A review for the exam
"The materiales are divided in three forms; gases, liquids and solids. These are called the States of Matter, and they depend on the different forces of attraction between their particles."
Solids
These have the strongest forces of attraction between the particles, they don´t move and have fixed positions, can vibrate and they keep their own shape and don´t flow.
Liquids
They have quite weak forces of attraction, they don´t have a fixed place or shape, and they flow. The particles move around in random directions but still stick toghether.
Gases
They have very weak forces of attraction and the particles move very far apart freely. They don´t have a fixed shape and will fill every container.
When heated:
Particles vibrate more and the solid expands slightly.
Solids
Particles move faster and the liquid expands.
Liquids
Particles move faster and either it expands or it increases the pressure.
Gases
Changing States of Matter
The States of matter can change depending if you add heat or take it away, to arrange the particles in different ways.
Blue arrow: Adding heat.Green arrow: Take away heat.
Movement of Particles (Liquid)
An example of the movement of particles is diffusion, that is the movement of particles through a liquid or gas, and an example that we can use is if you put potassium magnate into water, you can see with time the particles of purple color mixing with the transparent water when it spreads slowly, which is called the diffusion.
Solubility
Linked to this theme is the topic of solubility, that is when a solute (solid) dissolves in a liquid (solvent) to form a solubility. This happens when the particles of the solid get between the spaces between the liquid ones. That is why the higher the temperature of the liquid the more solubility (amount of solute that can be dissolved in it), because the more the particles move, the more space for the solid particles to fit in.
If you put too much Colacao in the milk, it will stay there and won´t dissolve.
Movement of Particles (Gas)
An example of movement of gas particles is if you do an experiment of puting in a tube cotton wool soaked in hydrochloric acid and another on the other side of aqueous ammonia, and you will soon get a ring of ammonium chloride but closer to the hydrochloric acid. This is because the particles of the aqueous ammonia are lighter and move quicker than the other.
That´s it.
Study hard for the exam!
Chemistry- Particles.
sofiapujantek.mur
Created on February 26, 2022
·_·
Start designing with a free template
Discover more than 1500 professional designs like these:
View
Video Tutorial Mobile
View
Health & medicine video mobile
View
Retro vintage video mobile
View
Butterflies video mobile
View
Isometric video mobile
View
Basic interactive video mobile
View
Glitch video mobile
Explore all templates
Transcript
Chemistry
A review for the exam
"The materiales are divided in three forms; gases, liquids and solids. These are called the States of Matter, and they depend on the different forces of attraction between their particles."
Solids
These have the strongest forces of attraction between the particles, they don´t move and have fixed positions, can vibrate and they keep their own shape and don´t flow.
Liquids
They have quite weak forces of attraction, they don´t have a fixed place or shape, and they flow. The particles move around in random directions but still stick toghether.
Gases
They have very weak forces of attraction and the particles move very far apart freely. They don´t have a fixed shape and will fill every container.
When heated:
Particles vibrate more and the solid expands slightly.
Solids
Particles move faster and the liquid expands.
Liquids
Particles move faster and either it expands or it increases the pressure.
Gases
Changing States of Matter
The States of matter can change depending if you add heat or take it away, to arrange the particles in different ways.
Blue arrow: Adding heat.Green arrow: Take away heat.
Movement of Particles (Liquid)
An example of the movement of particles is diffusion, that is the movement of particles through a liquid or gas, and an example that we can use is if you put potassium magnate into water, you can see with time the particles of purple color mixing with the transparent water when it spreads slowly, which is called the diffusion.
Solubility
Linked to this theme is the topic of solubility, that is when a solute (solid) dissolves in a liquid (solvent) to form a solubility. This happens when the particles of the solid get between the spaces between the liquid ones. That is why the higher the temperature of the liquid the more solubility (amount of solute that can be dissolved in it), because the more the particles move, the more space for the solid particles to fit in.
If you put too much Colacao in the milk, it will stay there and won´t dissolve.
Movement of Particles (Gas)
An example of movement of gas particles is if you do an experiment of puting in a tube cotton wool soaked in hydrochloric acid and another on the other side of aqueous ammonia, and you will soon get a ring of ammonium chloride but closer to the hydrochloric acid. This is because the particles of the aqueous ammonia are lighter and move quicker than the other.
That´s it.
Study hard for the exam!