Empirical Formulas, Molecular Formulas, and Molecular Geometry

What does the empirical formula of a molecule represent?

• The name of the molecule

• The exact number of each type of atom in a molecule

• The ratio of different elements in a molecule

• The 3D structure of a molecule

How many carbons and hydrogens are in a benzene molecule according to its molecular formula?

• Three carbons and three hydrogens

• Six carbons and six hydrogens

• One carbon and one hydrogen

• Twelve carbons and twelve hydrogens

Tags

NGSS.HS-LS1-6

What additional information does a structural formula provide compared to a molecular formula?

• The name of the molecule

• The arrangement of atoms in the molecule

• The exact number of each type of atom

• The ratio of elements in the molecule

In a structural formula, what does each line between atoms represent?

• A hydrogen bond

• A covalent bond

• A metallic bond

• An ionic bond

What is the empirical formula for water?

• H2O

• HO

• H2O2

• H2

Tags

NGSS.HS-PS1-7