Question
hich of the following demonstrates a chemical change?(1 point)
Responses
steam condensing on a mirror
steam condensing on a mirror
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)
sugar and water mixing to create sugar water
sugar and water mixing to create sugar water
dry ice vaporizing
dry ice vaporizing
Responses
steam condensing on a mirror
steam condensing on a mirror
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)
sugar and water mixing to create sugar water
sugar and water mixing to create sugar water
dry ice vaporizing
dry ice vaporizing
Answers
GPT-4o mini
The response that demonstrates a chemical change is:
**iron (Fe) reacting to water (H₂O) and oxygen (O) to form iron oxide (Fe₂O₃)**
This is a chemical change because it involves a chemical reaction where new substances (iron oxide) are formed. The other options describe physical changes or states of matter changes rather than chemical transformations.
**iron (Fe) reacting to water (H₂O) and oxygen (O) to form iron oxide (Fe₂O₃)**
This is a chemical change because it involves a chemical reaction where new substances (iron oxide) are formed. The other options describe physical changes or states of matter changes rather than chemical transformations.