Закончите уравнения реакций: 1.li + o= 2.h2 + 02= 3.cr2o3 + h2= 4.mg + hcl= 5 h2 +n2= 6.c h4 + o2= 7.ca + o2= 8.p + o2= 9.cuo + h2= 10.zn + hci= 11.h2 + o2= 12.h2s + o2=

4Li+O2=2Li2O
2H2+O2=2H2O
Cr2O3+3H2=2Cr+3H2O
Mg+2HCl=MgCl2+H2
3H2+N2=2NH3
CH4+2O2=CO2+2H2O
2Ca+O2=2CaO
4P+5O2=2P2O5
CuO+H2=Cu+H2O
Zn+2HCl=ZnCl2+H2
2H2+O2=2H2O
2H2S+3O2=2SO2+2H2O