4.1 Molecular and Structural Formulae

Multiple Select

Which of the following statements are true about saturated and unsaturated hydrocarbons?

• Saturated hydrocarbons contain only single bonds.

• Unsaturated hydrocarbons contain at least one double or triple bond.

• Alkanes and cycloalkanes are examples of saturated hydrocarbons.

• Alkenes and alkynes are examples of unsaturated hydrocarbons.

Fill in the Blanks

The skeletal structure shows only the

skeleton.

Multiple Choice

Which type of structural formula does NOT show single bonds between carbon and hydrogen atoms?

• Condensed structure

• Expanded structure

• Skeletal structure

• Empirical structure

Draw

Draw the expanded structure:

CH₃CH₂CH₂CH₂CH₃

Draw

Draw the skeletal structure:

CH₃CH₂CH₂CH(Br)CH₂CH₃

Multiple Choice

Based on the classification rules, which of the following statements are true about tertiary carbon atoms?

• They are bonded to three other carbon atoms.

• They are bonded to two other carbon atoms.

• They are bonded to four other carbon atoms.

• They are bonded to one other carbon atom.

Fill in the Blanks

A carbon atom bonded to four other carbon atoms is classified as

carbon.

Open Ended

The classification of hydrogen atoms depends on ____

Fill in the Blanks

A hydrogen atom bonded to a tertiary carbon is called

hydrogen.

Draw

Determine the class of C atom for the structure below

Draw

Count how many C 1⁰, C 2⁰, C 3⁰, C 4⁰, H 1⁰, H 2⁰, and H 3⁰ for the structure below