Illustration: AB --> A+B
Illustration: A+B--> AB
Combustion
Sydney has 2 pairs of shoes- gray sneakers and red sneakers. For fun, she decides to switch them and starts wearing gray right sneakers with red left sneakers and vice versa.
Holly and Harry are out enjoying ice cream when Harry's best friend Steve walks up. Inviting him to play basketball with him, Harry and Steve exit together, leaving Holly alone
Illustration: A+BC--> B+AC
Illustration: AB+CD --> CB+AD
Decomposition
Single Displacement
Double Displacement
Illustration: CH2+O2--> CO2+H2O
Two dogs are from separate rescue shelters but the same family adopts both and they are placed together.
Two socks are part of a pair however one sock gets separated from the other in the wash. Now they are just two separate socks.
Synthesis
Oxygen reacts with hydrogen to form H2O