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A powder of this element reduces iron oxide in exothermic welding due to its high affinity for oxygen. (-5[1])A catalyst of this element alloyed with nickel is activated with sodium hydroxide and is named for Murray Raney. (10[1])This element is produced by dissolving a precursor in cryolite (10[1])and electrolyzing the molten salt bath. This element is the third most abundant in the Earth’s crust after oxygen and silicon. This element is produced in the Hall–Héroult (“hall-ay-ROO”) process (10[1])from its oxide, which is isolated in the Bayer process for refining bauxite (“BOX-ite”). For 10 points, name this ultralight metal used to make soda cans and foil. ■END■ (10[1])

ANSWER: aluminum [or aluminium or Al; accept aluminum foil]
<USN A, Chemistry>
= Average correct buzz position

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Buzzes

PlayerTeamOpponentPositionValue
Ty BrennanBerkeley Mighty MinerBerkeley Boss Bandit17-5
Aaryan SumeshBerkeley Archer QueenStanford A3610
David YuanBerkeley Little PrinceStanford B4610
Lorie Au-YeungUCSCBerkeley Skeleton King7510
Yechan ParkBerkeley Boss BanditBerkeley Mighty Miner10310

Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK5100%40%69.00
UK (South)UK888%63%72.43
Northern CaliforniaUS4100%25%65.00
Southern CaliforniaUS7100%14%45.86
Eastern Canada (1)US4100%25%91.00
Eastern Canada (2)US989%22%72.88
FloridaUS4100%25%85.00
Great LakesUS11100%18%58.18
Lower Mid-AtlanticUS9100%0%52.78
Upper Mid-AtlanticUS9100%33%72.78
MidwestUS9100%0%49.33
NorthUS4100%25%81.25
PacificUS888%75%90.00
SoutheastUS1292%17%61.27
Upstate NYUS1100%100%103.00