What did dalton’a atomic theory teach?

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.

Determine the reaction and balance the following equations urgent due in the morning

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?