Adding H+, OH- and H20

[Ashley McClearnen 1B]

Can someone please explain when to add H+, OH- or H20 when balancing redox reactions in acidic/basic solutions?

[Nathaniel 2E]

For acidic solutions, first balance O by adding H2O, then balance H by adding H+.

For basic solutions, first balance O by adding H2O, then balance H by adding H2O to the side of each half reaction that needs H and adding OH- to the other side.

[Toru Fiberesima 1L]

H2O and H+ are used to balance out the numbers of oxygen and hydrogen atoms in the reaction, look at 14.1 in textbook for an example

[Karyn Nguyen 1K]

When do we know when to add H2O on both sides?

[Christina Chang 1C]

For a reaction in acidic solution, when there are unbalanced oxygens you would add H2O and then to balance out the extra hydrogens you would add H+. I'm not sure if that answered your question?