How do I draw the condensed formula for:

Question

1. 2,3-dimethyl-2-butene
2. 4-ethyl-2-hexyne
3. 3,3,6-trimathylnonane
4. 3-ethyl-4-propylheptane
5. 3-octanol

Answer 1

See my response to your question above Katrina/Cinnamon.

Answer 2

1.CH3C(CH3)double bond C(CH3)CH3
5.CH3CH2CHOHCH2CH2CH2CH2CH3