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1) FeO+2H(+)=Fe(2+)+H2O
2) Cu(2+)+2OH(-)=Cu(OH)2
3) Cr(3+)+3OH(-)=Cr(OH)3
1) FeO+2H(+)=Fe(2+)+H2O
2) Cu(2+)+2OH(-)=Cu(OH)2
3) Cr(3+)+3OH(-)=Cr(OH)3
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Answers & Comments
FeO + 2H⁺ + SO₄²⁻ = Fe²⁺ + SO₄²⁻ + H₂O
2) CuCl₂ + 2NaOH = Cu(OH)₂↓ + 2NaCl
Cu²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂↓ + 2Na⁺ + 2Cl⁻
3) Cr(NO₃)₃ + 3KOH = Cr(OH)₃↓ + 3KNO₃
Cr³⁺ + 3NO₃⁻ + 3K⁺ + 3OH⁻ = Cr(OH)₃↓ + 3K⁺ + 3NO₃⁻