1. Mg + H2SO4(p)= MgSO4 + H2
MgSO4 + 2NaOH = Mg(OH)2 + Na2SO4
Mg(OH)2 (t)= MgO + H2O
MgO + 2HCl = MgCl2 + H2O
MgCl2 + Ba = BaCl2 + Mg
2. Zn => K2ZnO2:
Zn + 2HCl = ZnCl2 + H2
ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
Zn(OH)2 + 2KOH (t)= K2ZnO2 + 2H2O
S => H2SO4:
S + O2 = SO2
2SO2 + O2 = 2SO3
SO3 + H2O = H2SO4
NH3 => HNO3:
4NH3 + 5O2 (Pt)= 4NO + 6H2O
2NO + O2 = 2NO2
4NO2 + O2 + 2H2O = 4HNO3
Cu => CuS:
Cu + S (t)= CuS.
1. Mg + H2SO4(p)= MgSO4 + H2
MgSO4 + 2NaOH = Mg(OH)2 + Na2SO4
Mg(OH)2 (t)= MgO + H2O
MgO + 2HCl = MgCl2 + H2O
MgCl2 + Ba = BaCl2 + Mg
2. Zn => K2ZnO2:
Zn + 2HCl = ZnCl2 + H2
ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
Zn(OH)2 + 2KOH (t)= K2ZnO2 + 2H2O
S => H2SO4:
S + O2 = SO2
2SO2 + O2 = 2SO3
SO3 + H2O = H2SO4
NH3 => HNO3:
4NH3 + 5O2 (Pt)= 4NO + 6H2O
2NO + O2 = 2NO2
4NO2 + O2 + 2H2O = 4HNO3
Cu => CuS:
Cu + S (t)= CuS.