Water expands when it freezes. The boiling point of water is 100ºC. Water can separate into hydrogen and oxygen. The density of water is greater than the density of ice.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which fact about water is an example of a chemical property?
Possibilities:
- Water expands when it freezes.
- The boiling point of water is 100ºC.
- Water can separate into hydrogen and oxygen.
- The density of water is greater than the density of ice.

Water can separate into hydrogen and oxygen.