Is it safe to use rubbing alcohol on a surface previously cleaned with hydrogen peroxide? The peroxide was used to clean mold on tile/grout on a floor (like a month ago). There was something gross on the floor this morning and I wiped it up with rubbing alcohol (it was stone so I didn't want to use bleach. Are there any risks of the 2 creating a reaction since it was so long ago?

No, you are safe.

No worries.

Hydrogen peroxide rapidly decomposes to water and O2. No reaction will occur.