2: She's permanently suspending the New York Giants starting quarterback.
banning Manning (seems to me this could also be "canning" but I'm going with "banning."
4: She's hypnotized by a film at a Utah festival.
6: She depicted the end of the world in a three-panel artwork.
apocalyptic triptych (my vote for the cleverest clue of the entire SHC!! Kudos!!)
8: She drove fast on the Autobahn and is using too many words to describe her speed.
couldn't be "doing a hundred and thirty wordy" so I'll just clam
10: She saw her son's eyes fill with tears at his baptism.
also couldn't be "lachrymal baptismal" so, another clam
3: When heated at standard atmospheric pressure, solid dry ice sublimes to this gas without becoming a liquid.
carbon dioxide (shouldn't that be "sublimates?"
6: To change a mixture into components with different boiling points, use the fractional form of this process of separating liquids through evaporation and condensation.
9: The Haber process combines two elemental gases to create this product, also a gas.
12: The heat a chemical reaction produces is measured by a change in this quantity, symbolized H.
couldn't be "hotness," so another clam (this day's boards include entirely too may opportunities for smartass wrong answers I love it.
15: This is the term for the minimum amount of energy that must be supplied for a reaction to occur; a catalyst can lower it.
combustion point (aka flash point)