In coal, pyrites (FeS(2)) is present as ...

In coal, pyrites `(FeS_(2))` is present as a pollution-causing impurity, which is removed by combustion.
`2FeS_(2) + 5O_(2) rarr 4SO_(2) + 2FeO`.
What mass of `H_(2)SO_(4)` can be prepared from `3.0 g` of `Cu_(2) S` if each atom of `S` in `Cu_(2)S` is converted into 1 molecule of `H_(2) SO_(4)`?

`Cu_(2)O`

`CuO`

`Cu`

`CuFeo_(2)`

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The correct Answer is:

`Cu_(2)S rarr Cu_(2)O`

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In coal, pyrites `(FeS_(2))` is present as a pollution-causing impurity, which is removed by combustion. `2FeS_(2) + 5O_(2) rarr 4SO_(2) + 2FeO`. What mass of `H_(2)SO_(4)` can be prepared from `3.0 g` of `Cu_(2) S` if each atom of `S` in `Cu_(2)S` is converted into 1 molecule of `H_(2) SO_(4)`?

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In coal, pyrites `(FeS_(2))` is present as a pollution-causing impurity, which is removed by combustion.
`2FeS_(2) + 5O_(2) rarr 4SO_(2) + 2FeO`.
What mass of `H_(2)SO_(4)` can be prepared from `3.0 g` of `Cu_(2) S` if each atom of `S` in `Cu_(2)S` is converted into 1 molecule of `H_(2) SO_(4)`?