Oxidation often removes ...?

What is the [oh-] in a solution with a poh of 3.90

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which metal exist in liquid state and can be cut with knife ?