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21 January, 22:38

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. 21 January, 22:48
    0
    The answer is A. 4Fe + 302 2Fe203
  2. 21 January, 23:05
    0
    A.

    4Fe + 3O2 2Fe2O3 ...
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