What has alternating electric and magnetic fields that travel in the form of a wave? Select one: a. electromagnet b. electromagnetic radiation c. alternating current d. direct current

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.

How does concentration affect reaction rate

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves