Chemistry Practice Problems Physical & Chemical Changes Practice Problems Solution: Classify each of the following changes as physical...

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Solution: Classify each of the following changes 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.

Problem

Classify each of the following changes 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.