Iron oxides such as rust form when iron metal reacts with oxygen in the air. What are the chemical symbols for the two elements found in iron oxide?

These 600+ science questions have been taken from the following state and regional science exams in the United States: AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas Assessment of... Show more

These 600+ science questions have been taken from the following state and regional science exams in the United States:
AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas Assessment of Knowledge and Skills, Virginia Standards of Learning, & Washington MSP.
 

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