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An unknown metal, m, forms an ionic compound with the formula, M2S3. Which formula represents the compound formed by the metal with oxygen?

a) MO
b) MO2
c) MO3
d) M2O3

2 answers

For M2S3, that means S is -2 and M is +3. Hint: O is in the same column as oxygen.

An ionic compound M2S3 is formed by the metal M, the metal is

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