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What is the chemical formula of "fool's gold"?

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What is the chemical formula of "fool's gold"?

What is the chemical formula of "fool's gold"?
A) cinnabar, HgS
B) galena, PbS
C) gypsum, CaSO4↔2H2O
D) pyrite, FeS2

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Introductory Chemistry Essentials

Introductory Chemistry Essentials

Edition: 5^th

Author: Tro

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