How do you know when to put Roman numerals in the name when balancing chemical formulas?

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asked Apr 15, 2018 97.0k views

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Skibulk · Answer 1 · 2018-04-21T12:42:11+0000

If the element has many numbers on the top right corner, you put the roman numeral. For example, iron has +2 and +3. you need to specify which iron ion you're talking about. Fe (II) or Fe (III)

How do you know when to put Roman numerals in the name when balancing chemical formulas?

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