Hi, I need help with this in Chemistry.

1. Draw the structural formula for each of these hvdrocarbons: 2. Match the following terms with the structures thev renresent: 1. Alcohol 2. Alkane 3. Alkene 4. Alkyne 5. Aromatic 6. Aldehyde 7. Carboxylic Acid 8. Ester 9. Ether 10. Ketone 3. The black soot is given off when certain hydrocarbons are burned because A. the fuel is undergoing complete combustion in the presence of oxygen. B. carbon dioxide and water mix to give a black powder. C. there is not enough oxygen present in the environment to combust that much fuel. D. more than one of these