The chemical formula of a covalent molecular substance ... the simplest ratio of atoms/ions in the substance. Sometimes the name of the compound gives information about the formula of that compound.

But as far as their structure is concerned, these RNAs all share the same basic single-stranded chemical structure with, in some cases, higher-order structures obtained through complementary base ...

Chemical formulae The chemical formula for a substance shows how many atoms of each element are present in a molecule, or the proportion of atoms of each element. The formula can be worked out ...