What makes a hydrofluorocarbon different from a chlorofluorocarbon?

Identify the total number of lone pairs in the structure below: 

Provide the condensed structures from the given bond line skeletal structures.

Identify the orbitals that overlap for each of the indicated bonds below:

Classify the following molecular formulae as alkanes, alkenes, or alkynes. (Note: It is assumed that these are acyclic, and they can contain only one double or triple bond.)

i) C₅H₁₀

ii) C₃H₄

iii) C₆H₁₄

iv) C₃H₆

The three isomers of dibromo-dichloroethene all have C-C double bonds but are different from one another. Give the Lewis structure of the three isomers of dibromo-dichloroethene.

Are the molecules shown below isomers or identical? 

In what ways do isomers differ from each other?

Give the structures of the compounds that exhibit stereoisomerism

i. 2,6‐dimethyl-4-heptanol

ii. 2,5‐dimethyl-4-heptanol

iii. 3,5‐diethyl-4-heptanol

iv. 3,3‐dimethyl-4-heptanol

Is optical isomerism present in the following compound? 

Isobutane, (CH₃)₃CH, is used in refineries to create gasoline-grade compounds. Each carbon atom follows the octet rule, while each hydrogen only forms one bond. The sequence of carbon atoms is shown below. Provide the complete structural formula for isobutane.

Propane used in barbecue grills has a formula C₃H₈. The carbon atoms are arranged as follows: C–C–C. Draw propane's structural formula given that each carbon forms four covalent bonds.

Give five structural isomers for hexane

Provide the name of this alkane: