The longest continuous chain of carbons is called the ______________.2. An organic compound containing only hydrogen and carbon is called a/an ______________.3. Sometimes an organic formula is written with a/an ______________, which is a shorthand notation that represents a hydrocarbon side chain.4. A hydrocarbon compound that contains multiple bonds is said to be a/an ______________.5. Some molecules have the same chemical formula but a different bonding pattern. These molecules are referred to as ______________.6. A hydrocarbon that contains only single bonds is called a/an ______________.7. An aromatic ring structure with the formula of C6H6 is called ______________.8. Ethene is an example of a/an ______________.9. The cis and trans isomers are also called ______________ because their atoms are arranged differently with respect to their double bonds.