객관식
Which of the following describes a chemical property of a metal?
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1. Intro to General Chemistry
Chemical Properties
Multiple Choice
Which element is necessary in the formation of rust?
A
Nitrogen
B
Oxygen
C
Hydrogen
D
Carbon
검증된 단계별 안내1
Understand that rust is a common name for iron oxide, which forms when iron reacts with oxygen and moisture.
Recall that rust formation is a chemical reaction involving iron (Fe) and oxygen (O2) from the air, often in the presence of water (H2O).
Identify the key element that combines with iron to form rust; this element is oxygen, which reacts with iron to produce iron oxides.
Recognize that nitrogen, hydrogen, and carbon are not directly involved in the chemical process that forms rust.
Conclude that oxygen is the necessary element in the formation of rust because it chemically bonds with iron to create iron oxide.
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