What is the chemical formula for ammonium carbonate?
(NH4)2CO3
(NH4)HCO3
NH4(CO3)2
NH4(CO3)

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.

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

Which fact represents evidence for the big bang theory?