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What are the number of ions Fe^+2 and Fe^+3 in Fe7(CN)18?​
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What are the number of ions Fe^+2 and Fe^+3 in Fe7(CN)18?​

User Kath
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Answer:

2x + 3y = 18 sum of charges of the iron ions must be +18 to balance 18 CN- ... y = 4 so there are 4 Fe3+ ions and (7–4) = 3

User Kramb
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