A) 2Fe+O2=2FeO;
b)2Ag+S=Ag2S;
c)3Ca+2P=Ca3P2;
d)4Al+3O2=2Al2O3;
e)4P+5O2=2P2O5.
2Na+BeO=Be+Na2O
K2O+Al2O3=2KAlO2
3Ca+N2=Ca3N2
2Al+6HCl=2AlCl3+3H2
4HNO3=4NO2+2H2O+O2
5P2O3=4P+3P2O5
2SO2+O2=2SO3
H2SO4+Na2SO4=2NaHSO4
4KClO3=KCl+3KClO4
2H2S+O2=2S+2H2O
Сh4+cl2=(hn)=ch3cl+hcl
2ch3cl+2na=2nacl+c2h6
c2h6=(t)=c2h4+h2
c2h4+hcl=c2h5cl
1. n(CO2) = 12,04*10^23/6.02*10^23 = 2(моль)
2. 1) N(O2) = 5*6.02*10^23 = 30.1*10^23(молекул)
2) N(H2SO4) = 4*6.02*10^23 = 24.08(молекул)
3) N(S) = 2*6.02*10^23 = 12.04*10^23(молекул)
4) N(N2) = 10*6.02*10^23 = 60.2*10^23(молекул)
3. 1) N(CO2) = 0.25*6.02*10^23 = 1.505*10^23(молекул)
2) N(CO2) = 0.75*6.02*10^23 = 4.515*10^23(молекул)
3) N(CO2) = 1.25*6.02*10^23 = 7.525*10^23(молекул)