1. Formulas

2. give the actual number of atoms of each element in a molecule.
Molecular Formulas
give the actual number of atoms of each element in a molecule.

3. give the lowest whole number ratio between the atoms in a molecule.
Empirical Formulas
give the lowest whole number ratio between the atoms in a molecule.

4. show how the atoms and bonds in a molecule are arranged
Structural Formulas
show how the atoms and bonds in a molecule are arranged

5. Glucose
Molecular: C6H12O6
Empirical: CH2O

6. Water
Molecular: H2O
Empirical: H2O

7. Nicotine
Molecular: C10H14N2
Empirical: C5H7N