K20 + H20 = 2 KOH Mg + 2HC = MgCl2 + H2
Ag20 = Ag + 02
FeCl2 + NaOH = Fe(OH)2 + NaCl
CrCl3 + Cr = CrCl2
ZnS + HCl = ZnCl2 + H2S
Fe2O3 + H2
= Fe + H20
NH3 = N2 + H2
WO3 + H2 = W + H2O
Al + 02 = A1203
MgO + HBr = MgBr2 +
+ H20
FeCl2 + Cl2 = FeCl3
NaOH + H3PO4 = Na3PO4 + H20
MnO2 + Al= Al2O3 + Mn
расставьте коэффициенты
Объяснение:
K2O + H2O = 2KOH
Mg + 2HCl = MgCl2 + H2
2Ag2O = 4Ag + O2
FeCl2 + 2NaOH = Fe(OH)2 + 2NaCl
2CrCl3 + Cr = 3CrCl2
ZnS + 2HCl = ZnCl2 + H2S
Fe2O3 + 3H2 = 2Fe + 3H2O
2NH3 = N2 + 3H2
WO3 + 3H2 = W + 3H2O
4Al + 3O2 = 2Al2O3
MgO + 2HBr = MgBr2 + H2O
2FeCl2 + Cl2 = 2FeCl3
3NaOH + H3PO4 = Na3PO4 + 3H2O
3MnO2 + 4Al = 2Al2O3 + 3Mn