The concentration of OH-ions in pure water at 25°C is known to be 10 x 10 -7 M.
How many mols of OH-ions are there in 2500.0 mL of pure water?

Iwill give extra points to who gets this right

What is an example of a physical property?

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.