Ответ:
+4-2
СO₂
+6-2
SO₃
+5-2
P₂O₅
+1-2
Cu₂S
+2 -1
BaF₂
+1 -2
Na₂S
Mn₂O₅
+1 +5-2
H₃PO₄
+1+4-2
H₂BO₃
+1+6-2
K₂Cr₂O₇
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Answers & Comments
Ответ:
+4-2
СO₂
+6-2
SO₃
+5-2
P₂O₅
+1-2
Cu₂S
+2 -1
BaF₂
+1 -2
Na₂S
+5-2
Mn₂O₅
+1 +5-2
H₃PO₄
+1+4-2
H₂BO₃
+1+6-2
K₂Cr₂O₇