1.C (Petroleum/Crude Oil is the main way.. via cat-cracking)
2.A (Concentrated sulfuric acid used in dehydration, dilute in hydration)
3.B (Seemed like the only one with neutron-proton ratio reasonable)
4.C
5.B
6.B (Gotta - 4.H20 since its condensation polymerisation)
7.A
8.B
9.C
10.C
11.C (most likely wrong.. probably D)
12.A
13.D
14.D (Significant figures.. markers always bitch about how important it is
)
15.A