Balancing chemical equations

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Intros
Lessons
  1. Writing Chemical equations
  2. What is a chemical equation?
  3. What does the conservation of mass mean?
  4. A good method to balance equations quickly.
  5. A balancing mistake you need to avoid.
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Examples
Lessons
  1. Practice balancing equations.
    Balance the equation:

    H2_2SO4+_4 + NaOH \, \, Na2_2SO4+_4 + H2_2O
    1. Balance the equation:

      HCl+ + Mg(OH)2_2 \, \, MgCl2+_2 + H2_2O
      1. Balance the equation:

        C3_3H8+_8 + O2_2 \, \, CO2+_2 + H2_2O
        1. Balance the equation:

          Na2_2CO3+_3 + H3_3PO4_4 \, \, Na3_3PO4+_4 + CO2+_2 + H2_2O