Bonus

The binding between these two kinds of compounds is the basis for artificial molecular machines such as molecular tweezers. For 10 points each:
[10m] Name these two kinds of compounds whose non-covalent interactions are studied in a branch of supramolecular chemistry, exemplified by the binding of metal cations to crown ethers.
ANSWER: hosts AND guests [accept host–guest chemistry]
[10e] Host–guest chemistry is analogous to the binding of substrates to these catalytic proteins.
ANSWER: enzymes
[10h] Among the many applications for host–guest chemistry is a room-temperature form of this phenomenon, which occurs when electrons are locked into a slower triplet state.
ANSWER: phosphorescence [prompt on luminescence; reject “fluorescence”]
<MY, Chemistry>

EditionsHeardPPBEasy %Medium %Hard %
11512.67100%20%7%

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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Brown AMIT A010010E
Carnegie Mellon ACarnegie Mellon B010010E
Case Western AMichigan A010010E
Chicago AIndiana B10101030MEH
Chicago DIllinois A010010E
Harvard ABrandeis B010010E
Harvard BBrandeis A010010E
Illinois CChicago B010010E
Indiana AWashU A1010020ME
KenyonMichigan D010010E
Michigan BOhio State A010010E
Michigan CCase Western B010010E
Michigan StateOhio State B010010E
Virginia AVirginia Tech A010010E
WashU BMissouri S&T1010020ME

Summary

TournamentEditionHeardPPBEasy %Medium %Hard %
Great Lakes2025-02-01610.00100%0%0%
Lower Mid-Atlantic2025-02-01110.00100%0%0%
Midwest2025-02-01518.00100%60%20%
Northeast2025-02-01310.00100%0%0%