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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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cynthiaa cynthiaa
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7 years ago
What is the percentage by mass of iron (Fe) in the mineral hematite (Fe2O3)?
A) 40%
B) 60%
C) 70%
D) 30%
Textbook 
Introductory Chemistry: Atoms First

Introductory Chemistry: Atoms First


Edition: 5th
Authors:
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coupcoup
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7 years ago
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cynthiaa Author
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#2
6 years ago
Correct Smiling Face with Open Mouth
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