Question

расставить коэфициенты в уравнениях..

so3+h2o=h2so4
naoh+co2=na2co3+h2o
ca+hcl=cacl2+h2
fe2o3+c=fe+co2
mg+o2+mgo
pb3o4+h2=pb+h2o 

al+cl2=alcl3

k+h2o=koh+h2

co+o2=co2

cuo+c=cu+co2

al+o2=al2o3

ch4+o2=co2+h2o

n2+h2+nh3

zncl2+naoh=zn(oh)2+nacl

p+o2=p2o3bacl2+h2so4=baso4+hcl 

Answer 1

SO3+H2O=H2SO4
2NaOH+CO2=Na2CO3+H2O
Ca+2HCl=CaCl2+H2
Fe2O3+3C=2Fe+3CO
2Mg+O2=2MgO
Pb3O4+4H2=3Pb+4H2O

2Al+3Cl2=2AlCl3

2K+2H2O=2KOH+H2

2CO+O2=2CO2

2CuO+C=2Cu+CO2

4Al+3O2=2Al2O3

CH4+2O2=CO2+2H2O

N2+3H2=2NH3

ZnCl2+2NaOH=Zn(OH)2+2NaCl

4P+5O2=2P2O5

BaCl2+H2SO4=BaSO4+2HCl