Half Equations

Question 1

How H+, H2O and e- are used in half equations

Answer 1

H+ to add hydrogen atoms
H2O to add oxygen atoms
e- to balance the charge of

Question 2

4 steps to write a half equation

Answer 2

1. Reactant on left side of atom and product on the right
2. Balance oxygen atoms
3. Balance hydrogen atoms
4. Balance the charge

Question 3

3 steps to combine half equations

Answer 3

1. Write the half equations
2. Make sure the number of electrons in each half is the same
3. Add half equations and cancel electrons