Chemistry
Senior High
（8）（9）（10）の解き方を教えてください🙇🏻♀️
下線部の原子の酸化数を求める問題です
gas
(ヴ(ー)+
(8)CaSO4
(9) KMnO4
(10) K2Cr207
) Ca. SOf
x +(2)×4
f え= 0
ス=1
=+1
X +8= -2
2= -10
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