xFeS2 + yO2 -> zFe2O3 + wSO2, what is the value of x + y + z + w? – McqOptions

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1.	xFeS₂ + yO₂ -> zFe₂O₃ + wSO₂, what is the value of x + y + z + w?
A.	t16
B.	t21
C.	t25
D.	t32
Answer» D. t32

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