Question

completati spatiile punctate de mai jos,egalati substantele si recizati tipul fiecarei reactii:

CaO+..........=Ca(OH)2
S+................=FeS
Ca(OH)2+HCl=..................+H2O
.................+ AgNO3=.........Ca(NO3)2
H2+........=HCl
............Pb(NO3)2=Zn(NO3)2+.........
.........=Hg+O2

Answer 1

CaO + 2 H2O = Ca(OH)2
S + Fe = FeS
Ca(OH)2 + 2 HCl = CaCl2 + 2 H2O
CaCl2 + 2 AgNO3 = Ca(NO3)2 + 2 AgCl
H2 + Cl2 = 2 HCl
ZnCl2 + Pb(NO3)2 = Zn(NO3)2 + PbCl2
HgO = Hg + 1/2 O2