Question
An N-heterocyclic carbene was added between the development of the first and second generations of one of these compounds used for olefin metathesis. Lead acetate is used to generate an example of these substances invented by Lindlar that is poisoned to reduce its activity. Based on their phase relative to the reactants, these compounds are classified as heterogeneous or homogeneous. These substances, which provide pathways with lower activation energy, are regenerated at the end of a reaction. For 10 points, enzymes are biological examples of what type of substance that can speed up a chemical reaction? ■END■
ANSWER: catalysts [accept Grubbs’ catalyst]
<Science - Chemistry>
= Average correct buzz position
Buzzes
Player | Team | Opponent | Buzz Position | Value |
---|---|---|---|---|
Geoffrey Wu (UG) | Columbia A | Maryland | 19 | 10 |
Edward Zhou (DII) | NYU A | NYU C | 41 | 10 |
Lucas Shedlock (DII) | Princeton | Columbia B | 43 | 10 |
Vincent Zhang (DII) | Penn | Swarthmore B | 59 | 10 |
Ivan Henneh (DII) | Rowan | University of Delaware B | 70 | 10 |
Claire Wilson (DII) | Lehigh | Rutgers | 70 | 10 |