Matter Ch 1
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How do you define Weight
How much force on a object
Particles in a liquid
-weak force between particles -fixed volume & no fixed shape -slides over one another
Particles in a solid
-strong force of attraction by particles -fixed shape & volume -vibrâtes in one spot
Particles in gas
-no attraction -takes shape of a container
Particle model & theory
-atoms are small solid indestructible spheres -all matter is made up of un-seeable particles - always in motion -attract each other
Atom
Smallest particle in matter -cannot be divided chemically
Élément
One or two atoms of the same kind
Compound & molecule
Two or more atoms (different)
Law conservation of matter
Matter is the same before and after Same amount before and after