xKMnO4 + yFeS + zH2SO4 -> xMnSO4 + wFe2(SO4)3 + uK2SO4 + zH2O, what is – McqOptions

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1.	xKMnO₄ + yFeS + zH₂SO₄ -> xMnSO₄ + wFe₂(SO₄)₃ + uK₂SO₄ + zH₂O, what is the value of x + y + z + w + u?
A.	t60
B.	t74
C.	t85
D.	t98
Answer» C. t85

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