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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Yeah.Yeah. Yeah.Yeah.
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3 years ago
An oxide of iron has the formula Fe3O4. What mass percent of iron does it contain?


▸ 0.72%

▸ 28%

▸ 30%

▸ 70%

▸ 72%
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
Authors:
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Bowmanette35Bowmanette35
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this is exactly what I needed
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Brilliant ツ
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This helped my grade so much Perfect
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