5.8 - Chemical Formulas for Ionic compounds
5.8.2 - Writing
Formulas for compounds containing polyatomic ions
Follow these simple steps to write chemical formulas for
ionic compounds containing polyatomic
and find the
icon to learn the names, formulas and charges from
the list of polyatomic ions for this course.
Write the chemical formula involving
||Write the symbols (including charge)
of the cation
with the cation listed first.
||Determine the smallest number of
each kind of ion needed to give an overall charge of zero.
||Write the chemical formula, using
the appropriate subscripts to make the compound neutral in charge.