Question

Yves Chauvin won one-third of the 2005 Nobel Prize in Chemistry for his work on these reactions. For 10 points each:
[10h] Name these reactions that commonly use transition metal carbene catalysts. In these reactions, two olefins break and regenerate their double bonds, thus exchanging substituents.
ANSWER: olefin metathesis ("muh-TAH-thuh-sis") [accept alkene metathesis]
[10e] Most catalysts for olefin metathesis have this property. Unlike homogeneous catalysts, catalysts with this property are in a different phase than their reagents.
ANSWER: heterogeneous [or heterogeneous catalysts]
[10m] Catalysts for olefin metathesis are typically supported by this oxide. It doesn't contain silicon, but this oxide is often used as an abrasive or as a stationary phase in column chromatography.
ANSWER: aluminum oxide [or aluminium oxide or Al2O3 or aluminum(III) oxide or alumina or aloxide or aloxite or alundum; prompt on "corundum" by asking "what is the compound?"]
<Science - Chemistry>

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Data

TeamOpponentPart 1Part 2Part 3Total
Adlai E. Stevenson AUni of Illinois Laboratory0101020
Audrain County ATNorthview001010
EastchesterNorthmont010010
FremdAlabama Cyber Tech0000
Innovation Academy ABelmont10101030
Lambert AMontgomery Blair A0000
LexingtonDetroit Catholic Central A1010020
Richard MontgomeryJohns Creek010010
Strake Jesuit AHunter A1010020
Strake Jesuit BThomas Jefferson A010010
Walter Payton ALindbergh010010
WestwoodHinsdale Central A0101020

Summary

TournamentEditionExact Match?HeardPPBEasy %Medium %Hard %
2025 PACE NSC06/07/2025Y1213.3375%33%25%