law of conservation

law of conservation
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Storyboard Text

  • When writing a chemical equation the reactants and products must contain the same number of atoms of each element.
  • The law of conservation state that no matter is created nor destroyed in physical or chemical changes.
  • For example we have a carbon and oxygen atom lets see how they react.
  • C=2
  • C
  • C
  • +
  • O=2
  • O
  • O
  • O
  • C
  • C
  • O
  • If you have a formula that is unbalanced then you have to add a coefficient.
  • 2H
  • H
  • H
  • +
  • O
  • O
  • O
  • 2H2O
  • O
  • H
  • O
  • Coeifficent 
  • 2H2O
  • subscript
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