Chemistry
Senior High
空欄の答え左から6と２なんですが
どちらが3でも正解とはなりませんか？
Fe²
(4) H₂S →S+ (
)H+ +2e
(5) HNO3+ (3)H+ +(S)e
Cr₂O7²- + ( 14 ) H+ + (
(₁2)
→→→→NO + (
9)e → (
P 2
2 ) H₂O
) Cr³+ + ( 7 ) H₂O
(
12
1814
2
ラン
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