One 55 grams serving of a particular cereal supplies 270 mg of sodium, 11% of the recommended daily allowance. how
many moles and atoms of sodium are in the recommended daily allowance?

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

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.