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.

FREE Expert Solution

We’re being asked to determine whether each change is physical or chemical.


Physical change → there is a change in a matter as it goes from one physical state to another.

Chemical change → atoms rearrange themselves to create a new substance. 


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Problem Details

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.

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