Exam 2 Notes

# Exam 2 Notes - Charles’ Law-temperature increases volume...

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Exam 2 Notes Density Density = mass divided by volume Density for liquids and gases is measured in g/mL and solids is g/cubic centimeter or g/cm 3 Densities are different for different materials Densities of solids, liquids and gases are different Density is the how close together the particles of a substance are packed Mass is measured in grams Volume is measured in mL or cm 3 The Phases of Matter are Solid, Liquid, Gas and Plasma How is the movement of particles different in each state of matter? How does the heat energy in each phase of matter change? Boyle’s Law-Pressure increases, volume decreases or pressure decreases, volume increases (inverse relationship between pressure and volume)

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Unformatted text preview: Charles’ Law-temperature increases, volume increases or temperature decreases, volume decreases When gas particles are compressed they get closer together, move faster and collide more often producing pressure Gas particles can be compressed because they have space between them Solids and liquids cannot be compressed because there is no space between them Mass is the amount of matter in an object. Weight is relative to your position-it is relative to the pull of gravity on your mass. Example is that your weight is different on Earth than on the moon because the pull of gravity is different. However, your mass remains constant in both places....
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