Reading Chemical Formulas

Because capital letters indicate the start of a new element symbol.

Because capital letters make the formula look neater.

Because lowercase letters are not allowed in chemistry.

Because capital letters represent the number of atoms.

The number of atoms in a molecule

The number of molecules

The type of elements present

The charge of the molecule

A subscript tells you the number of molecules, while a coefficient tells you the number of atoms.

A subscript tells you the number of atoms for the element before it, while a coefficient tells you the number of molecules.

A subscript tells you the charge, while a coefficient tells you the type of element.

A subscript tells you the number of elements, while a coefficient tells you the number of compounds.

They are ignored in the calculation.

They indicate that the atoms inside should be added together.

They indicate that the atoms inside should be multiplied by the subscript outside the parentheses.

They change the type of atoms present.

2

3

6

9

5SrCl2 (Cl=10)

Al2(SO4)3 (O=12)

3Ni3(PO4)2 (O=24)

4Fe2(CO3)3 (O=36)

It represents a new element.

It indicates the number of atoms.

It shows the state of matter.

It is used for decoration.