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15 October, 01:00

Which is a chemical property of oxygen.

A. It expands when heated

B. It combines to form o2 molecules

C. It is a gas at room temperature

D. It reacts with iron to form rust

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Answers (2)
  1. 15 October, 01:43
    0
    I think the answer is D. I'm sorry if I'm wrong
  2. 15 October, 01:46
    0
    I think it's C hope it's right
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