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Question
Which of the following demonstrates a chemical change?(1 point)
Responses
sugar and water mixing to create sugar water
sugar and water mixing to create sugar water
dry ice vaporizing
dry ice vaporizing
iron (Fe) reacting to water((H2O)
) and oxygen(O) to form iron oxide(Fe2O3
)
iron (Fe) reacting to water(open paren cap h sub 2 cap o close paren) and oxygen(O) to form iron oxide(cap f e sub 2 cap o sub 3)
steam condensing on a mirror
steam condensing on a mirror
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1 answer
The response that demonstrates a chemical change is:
iron (Fe) reacting to water (H2O) and oxygen (O) to form iron oxide (Fe2O3)
This process involves a chemical reaction where the iron reacts with water and oxygen to form a new substance, iron oxide (rust). The other options describe physical changes.
