88. When the redox reaction in basic solution: is balanced using the smallest whole-number coefficients, the coefficient of H₂O is x and the sum of all coefficients is y. What is the sum of x and y, (x + y)?
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13

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統計： A(36), B(1), C(7), D(3), E(2) #2751703

面試倒楣鬼-22幸運上後西

B1 · 2022/04/22

#5425819

平衡後得
H2O+OH- +1NO2- + 2Al -> NH3 + 2AlO2-
x=1, y=8,
x+y =9 (A)

H2O跟OH-在同側是比較需要小心的地方...

88. When the redox reaction in basic solution: is balanced using the smallest whole-number coefficients, the coefficient of H2O is x and the sum of all coefficients is y. What is the sum of x and y, (x + y)? (A) 9 (B) 10 (C) 11 (D) 12 (E) 13