Tentukan bilangan oksidasi belerang dalam senyawa berikut.
SO3
HSO4
Na2S
MgSO4
H2S
SO3
HSO4
Na2S
MgSO4
H2S
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S+3.(-2)=0
s+(-6)=0
s=6
hso4
1+S+4(-2)=0
1-8+S=0
-7+S=0
S=7
Na2S
Na2+(-2)=0
Na2=2
Na=2/2=1
MgSO4
Mg+(-2)+4.(-2)=0
mG +-2+-8=0
-2-8+MG=0
-10+MG=0
MG=10
H2S
2.1+s=0
s=-2
yang kaya gini?