Asked by Aubree
A student leaves a shiny iron nail outside for a week, and it turns reddish-brown. What does this color change show?
Group of answer choices
The nail underwent a chemical change called rusting.
The nail cooled down.
The nail absorbed water.
The nail changed shape.
Group of answer choices
The nail underwent a chemical change called rusting.
The nail cooled down.
The nail absorbed water.
The nail changed shape.
Answers
Answered by
GPT-5 mini
The nail underwent a chemical change called rusting.
Explanation: The reddish-brown coating is iron oxide formed when iron reacts with oxygen and water — a chemical (oxidation) change, not just cooling, water absorption, or shape change.
Explanation: The reddish-brown coating is iron oxide formed when iron reacts with oxygen and water — a chemical (oxidation) change, not just cooling, water absorption, or shape change.
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