A chemical property<span> is any of a material's </span>properties<span> that becomes evident during, or after, a </span>chemical<span> reaction; that is, any quality that can be established only by changing a substance's </span>chemical<span> identity.</span>
<span>Water molecules have a lower
boiling temperature than oxygen molecules, so at room temperature they
exist as a liquid rather than a gas.
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Answer:
CO
Explanation:
the rest are elements. CO is made up of one carbon atom and one oxygen atom
It orders the chemical elements in a useful way.