CaCO₃ + 2HNO₃ = Ca(NO₃)₂ + CO₂↑ + H₂O
Ca²⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = Ca²⁺ + 2NO₃⁻ + CO₂ + H₂O
CO₃²⁻ + 2H⁺ = CO₂ + H₂O
Al₂(SO₄)₃ + 6KOH = 3K₂SO₄ + 2Al(OH)₃↓
2Al³⁺ + 3SO₄²⁻ + 6K⁺ + 6OH⁻ = 6K⁺ + 3SO₄²⁻ + 2Al(OH)₃
2Al³⁺ + 6OH⁻ = 2Al(OH)₃
Cu(oh)2=cuo+h2o
H2SIO=2SO2+H2O
2SO3=2SO2+O2<span />
1) б
2)
2Al + 3Cl2 ---> 2AlCl3
2Al + 6H2O ---> 2Al(OH)3 + 6H2
8Al + 3N2 --> 2Al4N3
2Al + 6HCl ----> 2AlCl3 + 3H2
CuSO₄ + 2NaOH = Cu(OH)₂↓ + Na₂SO₄<span>
</span>Cu²⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂↓ + 2Na⁺ + SO₄²⁻<span>
</span>Cu²⁺ + 2OH⁻ = Cu(OH)₂↓ <span>
K</span>₂S + FeCl₂ = FeS + 2HCl
2K⁺ + S²⁻ + Fe²⁺ + 2Cl⁻ = FeS + 2H⁺ + 2Cl⁻
С7H16--Pt,300°C-C6H5-CH3+4H2 ДЕГИТРОЦИКЛИЗАЦИЯ ГЕПТАНА.