hcoo

Ответ от Јтирлиц[гуру]
HCOONa <=> HCOO- + Na+ 2KOH + MgCl2 = 2KCl + Mg(OH)2 2K+ + 2OH- + Mg(2+) + 2Cl- = 2K+ + 2Cl- + Mg(OH)2 2OH- + Mg(2+) = Mg(OH)2 Na2S + 2HCl = 2NaCl + H2S 2Na+ + S(2-) + 2H+ + 2Cl- = 2Na+ + 2Cl- + H2S S(2-) + 2H+ = H2S Na2SO4 + Ba(NO3)2 = BaSO4 + 2NaNO3 2Na+ + SO4(2-) + Ba(2+) + 2NO3- = BaSO4 + 2Na+ + 2NO3- SO4(2-) + Ba(2+) = BaSO4 2HCOOH + Ca(OH)2 = (HCOO)2Ca + 2H2O 2HCOO- + 2H+ + Ca(2+) + 2OH- = 2HCOO- + Ca(2+) + 2H2O H+ + OH- = H2O Fe(OH)3 + 3HCl = FeCl3 + 3H2O Fe(OH)3 + 3H+ + 3Cl- = Fe(3+) + 3Cl- + 3H2O Fe(OH)3 + 3H+ = Fe(3+) + 3H2O