Round 4: Tossup 20

In a process named for these components, a desmut (“de-smut”) solution is used to clean a surface before it is passivated with a thick, porous oxide layer that allows for easy dye application. The [emphasize] coating of galvanized steel acts as one of these components to prevent corrosion. Ships often (-5[1])use (10[1])zinc as a “sacrificial” one of these components. One of these components continuously dissolves to provide the coating material in electroplating. Metals that have a lower reduction potential will tend to act as one of these components, which electrons flow away from in a galvanic cell. For 10 points, name this electrode often paired with a cathode. (10[1])■END■ (10[2])

ANSWER: anodes [accept sacrificial anodes; accept anodization; prompt on electrodes until read]
<UBC C, Chemistry> | Packet D
= Average correct buzzpoint

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Buzzes


Summary

TournamentEditionMatchHeardConv. %Neg %Avg. Buzz
Northern CaliforniaMain4100%50%78.25
Southern CaliforniaMain7100%43%81.86
Eastern Canada (1)Main5100%20%75.00
FloridaMain4100%50%92.50
Great LakesMain10100%40%79.60
Lower Mid-AtlanticMain9100%56%96.33
Upper Mid-AtlanticMain9100%33%87.11
NorthMain475%25%79.00
NortheastMain12100%25%93.50
PacificMain8100%38%80.38
South CentralMain683%83%106.00
SoutheastMain1292%25%82.27
Upstate NYMain580%40%80.75
UK (North)UK4100%25%91.25