Question
When a piece of iron is rusting, which of the following statements best describes the changes occurring?
1 point
The rusting of iron is a chemical change as new substances are formed.
The iron is undergoing a physical change as it changes color.
The process of rusting is reversible and thus a physical change.
Rusting involves only the physical alteration of the iron's structure.
1 point
The rusting of iron is a chemical change as new substances are formed.
The iron is undergoing a physical change as it changes color.
The process of rusting is reversible and thus a physical change.
Rusting involves only the physical alteration of the iron's structure.
Answers
GPT-4o mini
The correct statement is: **The rusting of iron is a chemical change as new substances are formed.**
Rusting involves the reaction of iron with oxygen and moisture, resulting in the formation of new substances, primarily iron oxide (rust). This is a clear indication of a chemical change, as the original substance (iron) is transformed into different chemical compounds.
Rusting involves the reaction of iron with oxygen and moisture, resulting in the formation of new substances, primarily iron oxide (rust). This is a clear indication of a chemical change, as the original substance (iron) is transformed into different chemical compounds.