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Chemistry Quiz on Iron Sulfides

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Questions and Answers

What is the correct name for the compound indicated by the formula FeS₂?

Iron sulfide
Iron(III) sulfide (correct)
Iron(II) sulfate
Iron(II) sulfide

Which oxidation state of iron is present in the compound FeS₂?

+4
+2
+1
+3 (correct)

What is the chemical formula for Iron sulfide, which is different from FeS₂?

Fe₂S₃
Fe(II)S₂
FeS₄
FeS (correct)

What is the primary difference between Iron(II) sulfide and Iron(III) sulfide?

<p>Oxidation state of iron (A)</p> Signup and view all the answers

Which of the following compounds contains iron in the same oxidation state as in FeS₂?

<p>Fe₂O₃ (C)</p> Signup and view all the answers

Flashcards

Chemical Compound

A compound formed when two or more elements chemically combine in a fixed ratio.

Chemical Formula

The chemical formula for a compound, showing the types and number of atoms present. For example, FeS₂ indicates one iron atom and two sulfur atoms.

Ionic Compound

When a metal combines with a non-metal, they form an ionic compound.

Oxidation State

The oxidation state of an element in a compound is its apparent charge.

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Stock Nomenclature

The name of a compound that uses Roman numerals to indicate the oxidation state of a metal.

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Study Notes

Compound Naming

The chemical formula FeS refers to iron sulfide.

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