Which of the following changes is not correctly labeled as a chemical reaction or a change of state?
A) rust forming on metal, a chemical reaction.
B) steam coming off of a cup of coffee, a change of state.
C) an ice cube melting in a drink, a change of state
D) the combustion of gasoline to give carbon dioxide and water, a chemical reaction
E) bubbles forming in a just opened can of soda, a chemical reaction

Question

Quizplus · Accepted Answer

Bubbles forming in a just opened can of soda is not a chemical reaction, but rather a physical change due to release of gas under pressure.

Which of the Following Changes Is Not Correctly Labeled as a Chemical