In the following list,only ________ is not an example of a chemical reaction.
A)dissolution of a penny in nitric acid
B)the condensation of water vapor
C)a burning candle
D)the formation of polyethylene from ethylene
E)the rusting of iron

Question

Quizplus · Accepted Answer

The condensation of water vapor is a physical change, as it involves a change in state from a gas to a liquid, but no chemical bonds are broken or formed. The other options all involve chemical reactions, where chemical bonds are broken and/or formed.

In the Following List,only ________ Is Not an Example of a Chemical