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vitum1970
@vitum1970
August 2021
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Срочно!!!!!
Химия 8 класс
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MiniNeckro
1. Б
H₂SO₃=H⁺+HSO₃²⁻
HSO₃²⁻=H⁺+SO₃²⁻
Оксид - SO₂
2. H₂SO₄+Mg=MgSO₄+H₂
Pb+H₂SO₄=H₂+PbSO₄
H₂SO₄+Cu(OH)₂=2H₂O+CuSO₄
H₂SO₄+2KOH=K₂SO₄+2H₂O
H₂SO₄+CaO=CaSO₄+H₂O
H₂SO₄+K₂CO₃=K₂SO₄+H₂O+CO₂
H₂SO₄+BaCl₂=BaSO₄+2HCl
3. а) AgNO₃+HCl=AgCl+HNO₃
б) Zn(OH)₂+2HCl=ZnCl₂+2H₂O
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Answers & Comments
H₂SO₃=H⁺+HSO₃²⁻
HSO₃²⁻=H⁺+SO₃²⁻
Оксид - SO₂
2. H₂SO₄+Mg=MgSO₄+H₂
Pb+H₂SO₄=H₂+PbSO₄
H₂SO₄+Cu(OH)₂=2H₂O+CuSO₄
H₂SO₄+2KOH=K₂SO₄+2H₂O
H₂SO₄+CaO=CaSO₄+H₂O
H₂SO₄+K₂CO₃=K₂SO₄+H₂O+CO₂
H₂SO₄+BaCl₂=BaSO₄+2HCl
3. а) AgNO₃+HCl=AgCl+HNO₃
б) Zn(OH)₂+2HCl=ZnCl₂+2H₂O