+2.
+3
+4.
+6.
Correct answer is D
Fe2(SO4)3 = 0 (+3 x 2) 9 3x + (-2 x 4 x 3) = 0 +6 + 3x -24 = 0 +3x - 18 = 0 3 x = 18 x = 18/3 = +6
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