Quick overview of the five types…
Synthesis:
A + X  AX
Decomposition: AX  A + X
Single
Replacement:
A+Y- + X  A+X- + Y OR
A+X- + B  B+X- + A
Double
Replacement:
A+X- + B+Y-  A+Y- + B+X-
Combustion:
C #H#(O#) + O2 (g)  CO2 (g) +
H2O (g)
Look for:
2 reactants, 1 product
Look for:
1 reactant, 2 or more
products
Look for:
2 reactants, 2 product
Elem. + Cmpd Elem. + Cmpd
Look for:
2 reactants, 2 product
Cmpd + Cmpd Cmpd +
Cmpd
Look for:
Organic mlcl with C, H, O
Words like “burned”
“combusted”
NOTE: You need to supply
the oxygen