Question
This compound has the weakest covalent bonds of any known substance that is isolable near standard conditions. For 10 points each:
[10h] Name this compound that oxidizes gold to gold(V) (“gold five”) and silver to silver(III) (“silver three”) because it is the strongest known oxidizing agent.
ANSWER: krypton difluoride [or krypton(II) fluoride; or KrF2; or F2Kr; prompt on krypton fluoride]
[10e] Krypton difluoride is so reactive because krypton belongs to this group of elements that do not readily form compounds because of their full valence shells.
ANSWER: noble gases [or group 18; accept inert gases; accept aerogens]
[10m] Heavier noble gases form more, and more stable, compounds because this quantity decreases down the group, enabling them to more readily react with very electronegative elements such as fluorine.
ANSWER: (first) ionization energy [or IE]
<Gerhardt Hinkle, Chemistry>
Summary
| 2023 Penn Bowl (Harvard) | 10/21/2023 | Y | 1 | 20.00 | 100% | 100% | 0% |
| 2023 Penn Bowl (Mainsite) | 10/21/2023 | Y | 1 | 20.00 | 100% | 100% | 0% |
Data
| MIT | Harvard | 0 | 10 | 10 | 20 |