WHAT KIND OF CELLS ARE HUMANS MADE OF?

What happens when an acid dissolves?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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.