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20 December, 08:45

Iron reacts with oxygen in the air to make rust.

Which of the chemical equations matches the reaction above?

A.

4Fe + 3O2 2Fe2O3

B.

2I2 + 3CO2 2C3I2O3

C.

2I2 + 3O2 2I2O3

D.

4Fe + 3CO2 2Fe2C3O3

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Answers (2)
  1. 20 December, 11:03
    0
    A.

    4Fe + 3O2 2Fe2O3 ...
  2. 20 December, 11:12
    0
    The answer is A. 4Fe + 302 2Fe203
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