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
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)
dry ice vaporizing
1 answer
The option 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 new substances (iron oxide) are formed, which is characteristic of a chemical change. The other options involve physical changes (mixing, condensing, and vaporizing) rather than a transformation that creates new substances.
