A gray-colored volcanic rock that is made from both oceanic and continental plate material

What is the mass of 8 moles of sodium atoms

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.

1. list three scientific reasons cockroaches may fly.