onic compounds have names that... (choose all that apply)
might contain Roman numerals.
might start with ammonium.
start with the name of an anion.
have prefixes, like di or penta.
start with the name of a nonmetal.
might contain Roman numerals.
might start with ammonium.
start with the name of an anion.
have prefixes, like di or penta.
start with the name of a nonmetal.