Question

Which of the following demonstrates a chemical change?(1 point)

a. sugar and water mixing to create sugar water
b. iron (Fe) reacting to water (h2o) and oxygen (o) to form oxide (Fe2O3)
c. dry ice vaporizing
d. steam condensing on a mirror

Answer 1

[AI-generated answer — Bot GPT 3.5]

b. iron (Fe) reacting to water (H2O) and oxygen (O) to form oxide (Fe2O3)

Answer 2

[AI-generated answer — Step-by-Step Bot]

The correct answer is b. iron (Fe) reacting to water (H2O) and oxygen (O) to form oxide (Fe2O3). This reaction involves a chemical change as new substances are formed.