iron - 2025 ACF Fall - Buzzpoints App

Question

A compound containing this metal bonded to six cyanides was first synthesized by the paint maker Johann Jacob Diesbach in 1706. For 10 points each:

[10e] Name this metal central to Prussian blue with +2 (“plus two”) and +3 (“plus three”) oxidation states. This metal, cobalt, and nickel are the most common ferromagnets.

ANSWER: iron [or Fe; accept iron (II) or iron (III) or Fe2+ or Fe3+]

[10m] The ferricyanide ion of Prussian blue is an octahedral one of these complexes. These complexes consist of a metallic central atom bonded to several ligands.

ANSWER: coordination complexes

[10h] In medicine, Prussian blue is used as an antidote for heavy metal poisoning due to its high affinity for metal cations described by this adjective. In HSAB theory, this adjective describes large, highly polarizable atoms.

ANSWER: soft [accept soft acids or soft bases or soft Lewis acids or soft Lewis bases; reject “hard and soft acids and bases” or “hard and soft Lewis acids and bases”]

<Editors, Chemistry>

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Summary


Northern California	Main	Y	4	10.00	75%	0%	25%
Southern California	Main	Y	7	15.71	100%	29%	29%
Eastern Canada (1)	Main	Y	5	14.00	80%	40%	20%
Eastern Canada (2)	Main	Y	9	15.56	100%	44%	11%
Florida	Main	Y	4	7.50	75%	0%	0%
Great Lakes	Main	Y	12	11.67	67%	42%	8%
Lower Mid-Atlantic	Main	Y	9	8.89	78%	11%	0%
Upper Mid-Atlantic	Main	Y	10	9.00	90%	0%	0%
Upper Mid-Atlantic	Main	Y	2	15.00	100%	50%	0%
Midwest	Main	Y	9	12.22	89%	22%	11%
North	Main	Y	3	13.33	100%	33%	0%
Northeast	Main	Y	11	14.55	82%	55%	9%
Pacific	Main	Y	8	10.00	75%	25%	0%
South Central	Main	Y	7	11.43	86%	29%	0%
Southeast	Main	Y	13	10.00	69%	31%	0%
UK (North)	UK	Y	5	10.00	80%	0%	20%
UK (South)	UK	Y	7	10.00	86%	0%	14%
Upstate NY	Main	Y	5	6.00	60%	0%	0%

Data


Berkeley Archer Queen	Berkeley Mighty Miner	10	0	10	20
Berkeley Boss Bandit	Stanford B	10	0	0	10
Berkeley Little Prince	Berkeley Skeleton King	10	0	0	10
UCSC	Stanford A	0	0	0	0
UC Irvine	Claremont C	10	0	0	10
UCLA C	UC Santa Barbara	10	10	0	20
UCLA A	USC B	10	0	10	20
Claremont B	UCLA B	10	0	0	10
Claremont A	UCLA D	10	0	0	10
UCSD A	UCSD B	10	10	10	30
UCLA E	USC A	10	0	0	10
Carleton A	McGill E	0	0	10	10
McGill A	McGill C	10	10	0	20
Ottawa D	McGill B	10	0	0	10
Ottawa B	Ottawa A	10	10	0	20
Ottawa C	Carleton B	10	0	0	10
Queen's A	Brock A	10	0	0	10
Toronto E	Guelph A	10	0	0	10
Toronto F	McMaster C	10	10	0	20
Toronto A	Waterloo A	10	10	0	20
Toronto C	Toronto B	10	10	0	20
McMaster A	Toronto D	10	10	10	30
Toronto H	Toronto I	10	0	0	10
Toronto G	Waterloo B	10	0	0	10
McMaster B	Waterloo C	10	0	0	10
Florida Tech A	Florida B	0	0	0	0
Florida State A	ERAU Daytona A	10	0	0	10
South Florida A	Florida Tech B	10	0	0	10
UCF A	Florida A	10	0	0	10
CWRU A	CWRU B	0	10	0	10
Pittsburgh	Kentucky	0	0	0	0
Ohio State A	Louisville B	10	0	0	10
Michigan State D	Louisville C	10	0	0	10
Michigan B	Michigan A	10	10	0	20
CWRU D	Michigan C	10	0	0	10
CWRU C	Michigan D	10	0	10	20
Michigan State A	Louisville A	10	10	0	20
Ohio State B	Michigan State B	0	10	0	10
Ohio State C	Louisville D	10	0	0	10
Ohio State D	Michigan State C	10	10	0	20
WVU A	WVU B	0	0	0	0
William & Mary A	NCSU A	10	0	0	10
NCSU B	Liberty B	10	0	0	10
Liberty C	Tusculum A	10	0	0	10
Virginia Tech A	UNC A	10	10	0	20
UNC B	UNC C	0	0	0	0
Virginia Tech B	Virginia A	10	0	0	10
Virginia Tech C	UNC D	10	0	0	10
JMU A	William & Mary B	0	0	0	0
William & Mary C	Liberty A	10	0	0	10
Rutgers B	Lehigh A	10	0	0	10
George Mason A	Maryland B	10	10	0	20
Columbia B	George Mason C	0	0	0	0
George Mason B	Johns Hopkins	10	0	0	10
NYU B	Lehigh B	10	0	0	10
Maryland A	Rutgers A	10	0	0	10
Maryland C	NYU A	10	0	0	10
Princeton	Columbia A	10	0	0	10
Vassar B	Rowan	10	0	0	10
NYU C	Rutgers C	10	0	0	10
Rutgers D	Penn	10	0	0	10
Stony Brook	Vassar A	10	0	0	10
Chicago A	WashU Grizzlers	10	0	0	10
Purdue A	Chicago B	0	10	10	20
Iowa B	Illinois Champaign	10	0	0	10
Illinois Orange	Indiana B	10	0	0	10
Purdue B	Illinois Canada	10	10	0	20
Purdue C	Iowa A	10	0	0	10
Rose-Hulman A	Purdue D	10	0	0	10
WashU Grolars	Indiana A	10	0	0	10
William Woods University A	Illinois Blue	10	0	0	10
Macalester	St. Thomas	10	0	0	10
Wisconsin A	Iowa State	10	10	0	20
Michigan Tech	Wisconsin C	10	0	0	10
Amherst B	Boston University B	10	0	0	10
Brandeis Mozart	Boston College A	10	0	0	10
Brown A	Dartmouth A	10	10	0	20
MIT A	Brown B	10	10	10	30
Brandeis Beethoven	Harvard	0	10	0	10
Amherst A	Tufts A	10	0	0	10
Tufts B	Vermont A	10	0	0	10
UConn A	Boston University A	10	10	0	20
Williams A	Vermont B	0	10	0	10
Williams B	Dartmouth B	10	10	0	20
Dartmouth C	Williams C	10	0	0	10
Alberta A	Washington Atlantic	10	0	0	10
Washington Chum	Alberta B	10	0	0	10
Washington Sockeye	Arizona State A	0	0	0	0
British Columbia B	Texas	0	0	0	0
British Columbia C	Washington State	10	10	0	20
Washington Chinook	Washington Steelhead	10	0	0	10
Washington Coho	British Columbia A	10	0	0	10
Washington Pink	Washington Masu	10	10	0	20
Central Oklahoma B	Tulsa B	10	0	0	10
Kansas State A	Kansas State B	10	0	0	10
Murray State College B	Murray State College A	0	0	0	0
Nebraska A	Nebraska B	10	10	0	20
Nebraska C	Oklahoma	10	0	0	10
Rose State	Harding	10	0	0	10
Tulsa A	Central Oklahoma A	10	10	0	20
Vanderbilt A	Alabama A	10	10	0	20
Auburn A	Tennessee Tech	10	0	0	10
Vanderbilt C	Auburn C	10	0	0	10
Clemson A	Chipola College	10	0	0	10
Montevallo	Clemson B	0	0	0	0
Sewanne	Clemson C	0	0	0	0
Georgia A	Emory A	0	0	0	0
Auburn B	Georgia Tech B	10	0	0	10
Georgia Tech A	Georgia Tech C	10	0	0	10
Georgia Tech F	Georgia Tech E	10	10	0	20
Vanderbilt B	Mississippi State A	10	10	0	20
South Carolina A	Tennessee A	0	10	0	10
Georgia Tech D	Tennessee B	10	0	0	10
Edinburgh B	Durham B	0	0	0	0
Durham D	Edinburgh D	10	0	0	10
Durham A	Edinburgh C	10	0	10	20
Edinburgh A	Sheffield A	10	0	0	10
Sheffield B	Durham C	10	0	0	10
Southampton	Cambridge A	10	0	0	10
Cambridge E	Cambridge C	10	0	10	20
Cambridge D	Imperial A	10	0	0	10
Birmingham	Imperial B	10	0	0	10
Imperial C	Bristol	0	0	0	0
Warwick	LSE	10	0	0	10
Imperial D	Oxford	10	0	0	10
Binghamton C	Rochester	0	0	0	0
Cornell A	Cornell D	10	0	0	10
Binghamton B	Cornell C	10	0	0	10
RIT A	ESF	10	0	0	10
Binghamton A	RIT B	0	0	0	0