The shark and remora have a relationship that benefits the remora but neither helps nor harms the shark What type of relationship is this

Type the letter that represents the correct location for each particle type below.

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.

If a solution had a ph of 7 what is the solution