Question

Chemical formulas contain subscripts. What is the purpose of
a subscript?
A. It indicates the number of atoms of each element in a
chemical formula
B. It shows the most important element in each chemical
formula
C. It ranks the elements from highest to lowest mass in the
chemical formula.
D. It is used to separate letters in chemical formulas.

Answer 1

A

It is used to represent the number of atoms in the element. H2O is 2 Hydrogen molecules and one oxygen molecule, however we don’t wright the 1.