Solid
Definite shape and definite
volume
Little kinetic energy in the
molecules
Example: aluminum
Liquid
Definite volume but no
definite shape
More kinetic energy in the
molecules
Example: water
Gas
No definite shape no
definite volume
Most kinetic energy of the
molecules
Example: air
Plasma

A soup of positive

nuclei surrounded by
free flowing
electrons
Example: Lightning
Physical Change
Change in matter that
does not produce new
products
May look different, but it’s
not a new substance
“Easi...
Physical Change
Chemical properties are
not changed
No energy given or
taken unless there is a
change of state
Change of State
Molecules gain or lose kinetic
energy
Melting/freezing,
evaporating/condensation
Change of State
Sublimation
Going from a solid to a
gas
Skips the liquid state
Chemical Change
Matter changes from one
kind of material to another
The atoms do not change
They rearrange themselves
Not ...
Chemical Change
The new substances
have new properties
Chemical change takes
place during a chemical
reaction
Energy
Always a part of a
chemical change
Given or taken
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States of Matter and Physical and Chemical Changes

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States of Matter and Physical and Chemical Changes

  1. 1. Solid Definite shape and definite volume Little kinetic energy in the molecules Example: aluminum
  2. 2. Liquid Definite volume but no definite shape More kinetic energy in the molecules Example: water
  3. 3. Gas No definite shape no definite volume Most kinetic energy of the molecules Example: air
  4. 4. Plasma A soup of positive nuclei surrounded by free flowing electrons Example: Lightning
  5. 5. Physical Change Change in matter that does not produce new products May look different, but it’s not a new substance “Easily” reversed
  6. 6. Physical Change Chemical properties are not changed No energy given or taken unless there is a change of state
  7. 7. Change of State Molecules gain or lose kinetic energy Melting/freezing, evaporating/condensation
  8. 8. Change of State Sublimation Going from a solid to a gas Skips the liquid state
  9. 9. Chemical Change Matter changes from one kind of material to another The atoms do not change They rearrange themselves Not “easily” reversed
  10. 10. Chemical Change The new substances have new properties Chemical change takes place during a chemical reaction
  11. 11. Energy Always a part of a chemical change Given or taken

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