2Na₃PO₄ + 3Ba(OH)₂ = Ba₃(PO₄)₂ + 6NaOH
Fe₂(SO₄)₃ + 6NaOH = 2Fe(OH)₃ + 3Na₂SO₄
<span>3K₂SO₃ + 2H₃PO₄ =2K</span>₃PO₄ + 3H₂SO₃<span> </span>
Ca(HCO3)2 + 2HCl = CaCl2 + 2H2O + 2CO2<span>↑</span>
Na2CO3 + CaCl2 = 2NaCl + CaCO3↓
C10h18 +10 o2 = 10co2(стрелка вверх) + 9h2o
<span>СН3СООН + С2Н5ОН = CH3COOC2H5 + Н2О</span>
<span>n(C2H5OH) = m(C2H5OH)/M(C2H5OH) = 69/46 = 1,5 моль</span>
<span>m(CH3COOC2H5) = n(CH3COOC2H5)*M(CH3COOC2H5) = 1,5*76 = 114 г.</span>