You can say Formulas or Formulae.
The plural 's' at the end means there are more than one. If there are more than one there can be no single formula.
Its Just the same,dugh!,Its Still Formula
A formula or an expression.
well there is more than one!
Yes.
Yes it can.
More than 10 years
numbers
a formula
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
You have to look carefully to the chemical formula.