Answers: 10 to 18
 
# name formula
10 HCHO methanal (formaldehyde)
11 CH3CH2CH2Cl 1-chloropropane (propyl chloride)
12 CH3COCH3 propanone (acetone)
13 CH3CHCH2 propene
14 CH3CH2OOCH3
ethyl methyl peroxide
15 CH3COOCH3 methyl ethanoate (methyl acetate)
16 CH3CHBrCH2CH3 2-bromobutane
17 HOCH2CH2CHO 3-hydroxypropanal
18 FCH2CH2CCl(OH)CH2OH 2-chloro-4-fluoro-butan-1,2-diol