U-ню
U(Cu(OH)2)=19.6/98=0.2 моль
U(NaOH)=2/1*0.2=0.4
m(NaOH)=0.4*40=16г
Li2O+H2SO4= Li2SO4 + H2O
P2O5+3CaO=Ca3(PO4)2
Na2O+H2O=2NaOH
HgO+2HCl=HgCl2 + H2O
4Na+O2=2Na2O
N2O5+Ba(OH)2=Ba(NO3)2 + H2O
2СH3COOH + Cu(OH)2 = (CH3COO)2Cu + 2H2O
10HNO3 (разб.) + 4Mg = 4Mg(NO3)2 + N2O + 5H2O
Mg0-2e=Mg2+|2
N5+ +4e=N+ |1
<span>SiO2 + 2 Mg = 2 MgO + Si</span>
Однородные и неоднородные