Iron Can Form Two Sulfides: FeS and Fe₂S₃

question 24

Multiple Choice

Iron can form two sulfides: FeS and Fe₂S₃. Use Dalton's law of multiple proportions to predict the ratio of the two masses of sulfur that combine with 100 g of iron in each case to form these compounds.

• A) 1:1
• B) 1:3
• C) 1:2
• D) 2:3
• E) 3:4

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Definitions:

Transport Nutrients

involves the movement of nutrients from one location to another within an organism or between organisms in an ecosystem.

Dissolved Sugars

Sugars that have been dissolved in a solution, which can readily be absorbed by plants and animals for energy.

Pistil

The female reproductive organ of a flower; consists of either a single carpel or two or more fused carpels. See carpel.

Structure Labeled

In microscopy, the identification and tagging of specific cellular or molecular components with labels or markers for study.