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
Correct Answer:
Verified
Q15: Formaldehyde, a common preservative, is shown in
Q16: A liquid has temperature A as shown
Q17: How are vaporization and evaporation similar?
A) Both
Q18: What change of phase is represented by
Q19: Which statement best describes why steam burns
Q21: What is the electron geometry of the
Q22: Which arrow best shows the molecular dipole
Q23: Which statement best describes how heat is
Q24: Arrow A points to Q25: To accomplish the change of phase shown
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