Combining half equations

• What is combining two half equations the same as?

  Writing a redox reaction
• What must you do before you can combine two half equations?

  Make the number of electrons in each equation equal to each other by multiplying either one or both of the half equations
• What two things other than electrons must also be cancelled out when combining two half equations?

  H2O and H+
• How do you cancel down H+ and H2O when combining two half equations?

  After you have multiplied to make the electrons equal, subtract the H2O/ H+ from the equation with the most H2O/H+