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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Boiling point |
At the boiling point the particles have enough kinetic energy to overcome the forces holding them together. |
Bonds forces |
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Melting point |
At the melting point particles have enough kinetic energy to overcome the forces holding them together. |
Bonds forces |
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Solute |
A substance that dissolves is called a solute |
Dissolves |
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Solvent |
A substance that dissolves a solute is called a solvent. |
Dissolver |
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Solution |
When a solute dissolves in a solvent it forms a solution |
2 things together |
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Sublimation |
When a substance changes directly from a solid to a gas without going through the liquid stage. |
Misses out the middle |
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Evaporation |
The change of state from a liquid to a gas at a temperature below its boiling point |
In between 2 and 3 |
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Solidifying |
The change of state between a liquid to a solid on cooling |
2 to 1 |
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Solid |
Particles are close Regular arrangement Tiny vibrations Strong bonds
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Solid |
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Endothermic |
Heat is absorbed in and used to rebuild bonds |
On cooling |
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Exothermic |
Heat is given out and bonds are broken |
On heating. |
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Liquid |
Particles are close Irregular shape - fills container Flowing movement Medium bonds |
Liquid |
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Impurities |
Impurities raise the boiling point of a liquid and lower the melting point. |
Impurities |
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Gas |
Particles are far apart Irregular arrangement Move very quickly, bouncing off each other Very weak (negligible) bonds |
Gas |
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Heating curve |
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Heating curve. |
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Expansion |
When particles gain more energy they move further apart. |
((●))((●)) ((●))((●)) |
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Cooling curve |
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Cooling curve |
