H₂O+CrO₃=H₂CrO₄
H₂CrO₄+Ba(OH)₂=BaCrO₄+2H₂O
<span>3H2O2 + 2KMnO4 → 3O2 + 2MnO2 + 2KOH + 2H2O
2O(-2)</span><span>-2e→O2(o) -Восстановитель
M</span>n(+7)+3e<span>→Mn(+4) -Окислитель </span>
2NaOH + CO₂ = Na₂CO₃ + H₂O
Na₂CO₃ + CO₂ + H₂O = 2NaHCO₃
NaHCO₃ + NaOH = Na₂CO₃ + H₂O
Na₂CO₃ + 2HCl = 2NaCl + CO₂↑ + H₂O
2Zn + O₂ = 2ZnO
ZnO + 2HCl = ZnCl₂ + H₂O
ZnCl₂ + 2NaOH = Zn(OH)₂↓ + 2NaCl
Zn(OH)₂(т) + 2NaOH(т) t°C= Na₂ZnO₂ + 2H₂O↑
СH3COOH+ NaOH= CH3COONa+ H2O
CH3COOH+ CH3OH= CH3COOCH3+ H2O
CH3COOH+ Cl2= CH2ClCOOH+ HCl
CH3CHO+ KMnO4+ H2SO4= CH3COOH+ K2SO4+ MnSO4+ H2O