Rileys Freaky Fridays

Jon G asked:


I learned (and saw for myself) that hydrogen peroxide 3% plus baking soda and a drop of dish soap are an effective cat urine odor removal tool. What is the chemistry happening here and what am I leaving in my carpet after the reaction has finished and dried?

Mike asked:


You know when you put ground pepper ontop of water in a dish.

The pepper floats on top, covering the water. But when you put some dishwater soap on your finger and stick it in the middle of the dish, The pepper moves away from the finger.

How do you explain this in terms of chemistry and physics?