What do acids and bases have in common?
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A. They are both corrosive and can burn skin.
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B. They both have pH values lower than 7.
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C. They are both found in many foods.
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D. They are both commonly used as cleaners.

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.