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Particles in motion

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Kinetic Theory of Matter (movement of particles)

• Element: made of one type of atom
• Mixture: more than one element mixed together in any proportions, and keep its own properties, and can be seperated
• Molecule: more than one atom combined
• Compound: More than one atom chemically combined in fixed proportions. Properties can change, and it can't be seperated physically.

Solid

• Strong bonds
• move in fixed positions
• volume and shape constant

Liquid

• Weaker bonds
• can move, not far
• constant volume
• takes shape of container

Gas

• very weak bonds
• can move freely
• takes volume of container
• no shape

Density = mass/volume

finding irregular shaped density

• water, pan balance, measure displacement

finding density of regular shape

• Top pan balance, LxWxH

Pressure = force/area

Gas Laws

• Charles Law - Temperature increases, volume increases
• Boyles Law - Pressure increase, volume decreases
• Pressure Law - Pressure increases, temperature increases

-273 C is absolute zero or 0 Kelvins, this is when particles stop vibrating

About the Author

by: Admin
Total views: 2196
Word Count: 403
Date: Mon, 22 May 2006 Time: 12:00 AM
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