Classify each change as physical or chemical. a. Natural gas burns in a stove. b. The liquid
Question:
Classify each change as physical or chemical.
a. Natural gas burns in a stove.
b. The liquid propane in a gas grill evaporates because the valve was left open.
c. The liquid propane in a gas grill burns in a flame.
d. A bicycle frame rusts on repeated exposure to air and water.
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