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3 years ago

Please help~~~ thank you ❤️

Chemistry

1 answer:

Luba_88 [7]3 years ago

4 0

Answer:

a. 1 only

Explanation:

1. $Fe^{+2}O^{-2}$

2. $Fe_{2}^{+3}S_{3}^{-2}$

3. $Fe^{0}$

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