Which statement identifies why oxygen is classified as a pure
substance and air is classified as a mixture ?
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Answered by
1
Answer:
Oxygen is more reactive than air. Oxygen has a higher density than air. Oxygen goes under a phase change, whereas air is always a gas.
Answered by
1
Answer:
Oxygen is more reactive than air. Oxygen has a higher density than air. Oxygen goes under a phase change, whereas air is always a gas.
Air is a mixture and not a compound. Different substances react chemically form a compound which has properties different than that of the individual components. Also, a compound has a definite formula and cannot be broken into its constituents by physical methods of separation.
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