2HNO₃ + Ba(OH)₂= Ba(NO₃)₂ + 2H₂O
2H⁺ + 2NO₃⁻ + Ba²⁺ + 2OH⁻= Ba²⁺ + 2NO₃⁻<span> + 2H₂O
</span>2H⁺ + 2OH⁻ = <span> 2H₂O
</span>3AgNO₃+K₃PO₄ = 3KNO₃ + Ag₃PO₄↓
3Ag⁺ + 3NO₃⁻ + 3K⁺ + PO₄³⁻ = 3K⁺ + 3NO₃⁻<span> + Ag₃PO₄↓
</span>3Ag⁺ + PO₄³⁻ = Ag₃PO₄↓
Na₂CO₃ + 2HCI = 2NaCI + CO₂↑ +H₂O
2Na⁺ + CO₃²⁻ + 2H⁺ + 2CI⁻ = 2Na⁺ + 2CI⁻ + CO₂↑ +H₂O
CO₃²⁻ + 2H⁺ = <span> CO₂↑ +H₂O
</span>
<span>2KNO</span>₃<span>+Ba(OH)</span>₂ ⇄<span> 2KOH + Ba(NO</span>₃<span>)</span>₂
2K⁺ + 2NO₃⁻+ Ba²⁺ + 2OH ⇄ 2K⁺ + 2OH⁻ + Ba²⁺ + 2NO₃⁻
M(эфира)=20.4/0.8=25.5г
m(спирта)=15г
Mr(уксусной кислот)=60
CH3COOH+HOCnH2n+1=CH3COOCnH2n+1+H2O
CnH2n+1OH=14n+18
CH3COOCnH2n+1=14n+60
25.5(14n+18)=15(14n+60)
n=3
формула спирта-С3Н7ОН
Химическая формула С₁₂H₂₂O₁₁
A) 2H3PO4=P2O5+3H20
б) MgOHCl=Mg(OH)2+MgCl2
в)Ca(OH)2=CaO+H2O
г)NaHCO3=Na2CO3+CO2+H20