Matter

• matter - anything with mass and volume
• solid

  • tightly packed
  • no motion
• liquid

  • slight connection
  • slight motion
• gas

  • no connection
  • fast motion
• solid has both shape and volume
• liquid has volume but no shape
• gass has not shape and volume
• endothermic - melting and boiling
• exothermic - freezing and condensation
• physical change

  • cut
  • crumble
  • STILL THE SAME
• chemical change

  • formation of heat
  • change in color
  • odor
  • formation of gas
  • formation of solid
• exothermic = heat on project side / released
• endothermic = heat of reactant side / absorbed
• element - a substance that cannot be broken down into simpler substances by chemical means
• element - substance that contains 1 type of atom
• compound - a substance made up of two or more elements chemically combined in fixed proportions
• compound - substance that contains 2 or more types of atoms. Atoms are chemically bonded
• Heterogenous flitration

  • crystallization - diff freezing points
  • chromatography - separation of dyes
• 1st law = conservation of matter

  • mass is not created nor destroyed it is conserved
• 2nd law = is the law of definite proportion
• 3rd law = multiple proportions