NEED HELP NOW PLEASE! Balance the reactions 1 to 6 and indicate which type of chemical reaction (synthesis, decomposition, single-displacement, double-displacement or combustion) is being represented:

NaBr + Ca(OH)2 → ___ CaBr2 + NaOH Reaction Type :

NH3+ H2SO4 → (NH4)2SO4 Reaction Type :

C5H9O + O2 → CO2 + H2O Reaction Type :

Pb + H3PO4 → H2 + Pb3(PO4)2 Reaction Type :

Li3N + NH4NO3 → ___ LiNO3 + ___ (NH4)3N Reaction Type :

HBr + ___ Al(OH)3 → ___ H2O + ___ AlBr3 Reaction Type :

Indicate which type of chemical reaction (synthesis, decomposition, single-displacement, double-displacement or combustion) is being represented in 7 to 20.

Na3PO4 + 3 KOH → 3 NaOH + K3PO4 Reaction Type
MgCl2 + Li2CO3 → MgCO3 + 2 LiCl Reaction Type
C6H12 + 9 O2 → 6 CO2 + 6 H2O Reaction Type
Pb + FeSO4 → PbSO4 + Fe Reaction Type
CaCO3 → CaO + CO2 Reaction Type
P4 + 3 O2 → 2 P2O3 Reaction Type
2 RbNO3 + BeF2 → Be(NO3)2 + 2 RbF Reaction Type
2 AgNO3 + Cu → Cu(NO3)2 + 2 Ag Reaction Type
C3H6O + 4 O2 → 3 CO2 + 3 H2O Reaction Type
2 C5H5 + Fe → Fe(C5H5)2 Reaction Type
SeCl6 + O2 → SeO2 + 3Cl2 Reaction Type
2 MgI2 + Mn(SO3)2 → 2 MgSO3 + MnI4 Reaction Type
O3 → O. + O2 Reaction Type
2 NO2 → 2 O2 + N2 Reaction Type