Which of the following statements is not correct?
A)The combustion of methane (a component of natural gas)is a chemical change.
B)The melting of ice is a physical change.
C)The dissolution of sugar in water is a chemical change.
D)The decomposition of sugar into carbon and water when mixed with sulfuric acid is a chemical change.
E)The evaporation of gasoline is a physical change.

Question

Quizplus · Accepted Answer

The dissolution of sugar in water is a physical change, as it does not involve a chemical reaction, but rather the sugar molecules being dispersed throughout the water molecules. The other statements are correct, as they describe chemical changes (A and D) or physical changes (B and E).

Which of the Following Statements Is Not Correct