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vikikovtun
@vikikovtun
July 2022
2
12
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помогите нужно узнать валентность атомов элементов : PbO , PbO2 , P2O5 , SiO2
HBr , H2S , PH3 , SH4
Помогите !!!
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Answers & Comments
kulsyv
+2-2;+4-2;+5--2;+4-2;+1-1;+1-2;-3+1;-4+1.
1 votes
Thanks 2
iambekzod
PbO
Pb-2
O-2
PbO2
Pb-4
O-2
P2O5
P-5
0-2
SiO2
Si-4
0-2
HBr-1
H2S
H-1
S-2
PH3
P-3
H-1
SH4
S-4
H-1
2 votes
Thanks 3
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Answers & Comments
Pb-2
O-2
PbO2
Pb-4
O-2
P2O5
P-5
0-2
SiO2
Si-4
0-2
HBr-1
H2S
H-1
S-2
PH3
P-3
H-1
SH4
S-4
H-1