# What is the correct formula formed from lead(Pb) plus 4 and Oxygen(O)-2?

This lead oxide is PbO2.

### Might pasting in excel with relative references ever produce the wrong result?

Yes. It depends on the formula and what you want the formula to do. So it is easy to have the wrong formula and paste it, or have the correct formula initially, but when it is pasted elsewhere it does not use the correct values. Normally if you have your worksheet set up correctly then once the initial formula is correct, pasting it to the right place should not cause any problems. Yes. It depends…