Question

Закончите уравнение реакций: CH4+O2; H2S+NaOH; H2O+Cl2; NH3+HCl; H2O+Na; HNO3+Cu; HNO3+Cu(OH)2

Answer 1

CH4+2O2=CO2+2H2O
H2S+2NaOH=Na2S+2H2O
3H2O+3Cl2=5HCl+HClO3
NH3+HCl=NH4Cl
2H2O+2Na=2NaOH+H2 
4HNO3+Cu=Сu(NO3)2+2NO2+2H2O
2HNO3+Cu(OH)2=Cu(NO3)2+2H2O