Chemistry, 16.10.2020 18:01, ari9425

Which is a chemical property of oxygen? 1.It reacts with iron to form rust.
2.It is a gas at room temperature.
3.It expands when heated.
4.It combines to form O 2 molecules.

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Which is a chemical property of oxygen? 1.It reacts with iron to form rust.
2.It is a gas at...