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Nimfa1
@Nimfa1
August 2021
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Mg - MgO - MgCl2 - Mg(OH)2 - MgO - MgSO4
полное и сокращенное молекулярное уравнение на каждое превращение
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DJToxa
Verified answer
1:
2Mg+O₂-->2MgO
2:
MgO+2HCl--->MgCl₂+H₂O
MgO + 2H⁺ + 2Cl⁻ --->Mg²⁺ + 2Cl⁻ + H₂O
MgO + 2H⁺ --->Mg²⁺ + H₂O
3:
MgCl₂+2NaOH--->Mg(OH)₂↓+2NaCl
Mg²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ --->Mg(OH)₂↓ + 2Na⁺ + 2Cl⁻
Mg²⁺ + 2OH⁻ --->Mg(OH)₂↓
4:
Mg(OH)₂--[t]-->MgO+H₂O
5:
MgO+H₂SO₄--->MgSO₄+H₂O
MgO + 2H⁺ + SO₄²⁻ --->Mg²⁺ + SO₄²⁻ +H₂O
MgO + 2H⁺ --->Mg²⁺ + H₂O
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Answers & Comments
Verified answer
1:2Mg+O₂-->2MgO
2:
MgO+2HCl--->MgCl₂+H₂O
MgO + 2H⁺ + 2Cl⁻ --->Mg²⁺ + 2Cl⁻ + H₂O
MgO + 2H⁺ --->Mg²⁺ + H₂O
3:
MgCl₂+2NaOH--->Mg(OH)₂↓+2NaCl
Mg²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ --->Mg(OH)₂↓ + 2Na⁺ + 2Cl⁻
Mg²⁺ + 2OH⁻ --->Mg(OH)₂↓
4:
Mg(OH)₂--[t]-->MgO+H₂O
5:
MgO+H₂SO₄--->MgSO₄+H₂O
MgO + 2H⁺ + SO₄²⁻ --->Mg²⁺ + SO₄²⁻ +H₂O
MgO + 2H⁺ --->Mg²⁺ + H₂O