5- Explain the process of covalent bonding. Why do covalent bonds stay together? Explain the difference between single, double and triple bonds. 6- Give an example of an alkane and describe the distinguishing features of molecules of the family, other names for the family, and the general formula of alkanes. What is the structural formula for the alkane you have used as your example? How was it named? 7- What are structural isomers? Explain using hexane as an example