Answer:
[tex]C_{5}H_{10}\:C_{2}H_{6}[/tex]
Explanation:
Expanded Structure shows all the atoms and the bonds of the molecule. It is important to remember, each Carbon molecule have four bonds, while the Hydrogen just one. So:
1)[tex]C_{5}H_{10}[/tex]
Pentene. 5 Carbon molecules, 10 Hydrogen molecules. It's an isomer, so this organic compound has multiple arrangements.
2) [tex]C_{2}H_{6}[/tex]
Ethane. 2 Carbon and 6 Hydrogen Molecules. Check it below.