rust

Chemistry Science 9 of 9 appearances
Practice Chemistry

"rust" appearances by year

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All Chemistry clues by year

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# Clue Answer As Given Value Round Category Air Date Show
Fe2O3is the chemical formula for this 4-letter concern rust $1,200 DJ CHEMISTRY 2024-10-22 #9187
Fe2O3represents this 4-letter compound, something to avoid on your Rolls-Royce rust $800 DJ CHEMISTRY CLASS 2024-03-01 #9050
Hydrated ferric oxide is the scientific name for this rust $400 DJ CHEMISTRY 2017-09-15 #7590
Produced by oxidation & found on old cars, it consists chiefly of ferric hydroxide & ferric oxide rust $400 DJ WE'VE GOT CHEMISTRY 2014-03-28 #6805
Wet steel wool in a jar helps demonstrate the formation of this; so does an old car rust $600 J CHEMISTRY EXPERIMENTS 2002-05-29 #4098
In the 1700s Georg Ernst Stahl coined the phlogiston theory, that a form of burning caused this on iron rust $400 DJ CHEMISTRY 1999-04-27 #3382
This substance to watch for on your car is basically hydrated ferric oxide, Fe2O3 rust $400 DJ CHEMISTRY 1997-10-13 #3016
Perfectly dry iron doesn't do this because galvanic action won't take place without water being present rust $300 J CHEMISTRY 1990-02-16 #1265
Found in rhubarb, oxalic acid removes calcium from the body & this common oxide from iron rust (ferric oxide) $400 DJ CHEMISTRY 1988-09-26 #931
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