13. Which ONE of the following is a chemical process? A. The liquid propane in a gas grill burns in a flame. B. Salt (sodium chloride) dissolves in water. C. Ice melts to form liquid water. D. The liquid propane in a gas grill evaporates because the user left the valve open. E. All of the above are chemical processes.

Question

Chemistry

Elian Noble

14 October, 21:46

13. Which ONE of the following is a chemical process? A. The liquid propane in a gas grill burns in a flame. B. Salt (sodium chloride) dissolves in water. C. Ice melts to form liquid water. D. The liquid propane in a gas grill evaporates because the user left the valve open. E. All of the above are chemical processes.

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Answers (1)

Know the Answer?

Jessie Graham · Answer 1

A. The liquid propane in a gas grill burns in a flame.

Explanation:

Chemical changes is the change which occur when the substance combines with the another to form a completely new substance.

Considering Options B, C and D, the identity of each specie is not changed but the state is changed and thus, these are physical changes.

On the other hand, Option A, when propane is being burnt in the flame, it changes to gas and its identity is lost. Thus, is a chemical change.