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19 Cards in this Set
- Front
- Back
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Physical change |
Physical changes don't change atoms just their physical appearance |
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Changes of state steps |
1) when a solid is heated it gains more energy 2) making the particles move more which weakens the forces that hold the solid together it will then expand 3) at certain temps the particles have enough energy to break free which changes their state of matter to a liquid 4) when a liquid is heated again the particles gain more energy 5) again it weakens the force and particles setting them more free 6) at certain temp the liquid will boil from a Liquid to a gas |
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What are the heating procedures called to change states |
Solid to liquid = melting Liquid to gas = boil Gas to solid = subliming |
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Freezing procedure to change states |
Gas to liquid = condensing Liquid to solid = freezing Solid to gas = subliming |
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Diffusion |
When a smell or something is released to the air and the two particles (air and smell) combine to create a diffusion |
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Particle theory |
1) all materials are made up of tiny particles 2) the particles in a substance stay the same whether it's a solid liquid or a gas 3) what changes is the arrangement of the particles and their energy 4) this explains all the different properties of solids, liquids and gases |
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Explain solids |
- have strong forces or attraction between particles - but can move a bit - held in fixed positions |
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Explain liquids |
- they are constantly moving - let some forces or attraction between particles - particles are close but free to move |
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Explain gases |
- always moving - are close but free to move - have no forces or attraction between particles |
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Physical change definition |
Are the ones which re arrange particles without altering any chemical bonds. No mass loss as it is still the same amount and substance just a different state |
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Solute definition |
Is the solid being dissolved |
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Solvent definiti |
Is the liquid that the solute is dissolving into |
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Solution definition |
Is the solute and solvent |
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Soluble definition |
Mean the solution will dissolve |
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Insoluble |
Means the soluble will NOT dissolve |
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Saturated definition |
Won't dissolve any more at that temp |
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Solvability |
How much solute will dissolve |
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Charges of each particle in an atom |
Proton = positive Electron = negative Neutron = neutral |
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Name some periodic elements |
Hydrogen carbon nitrogen oxygen fluorine helium neon sodium magnesium aluminum selfur chlorine potassium calcium copper zinc silver gold Mercury iron barium lead |
