Question

Give one example of a decomposition reaction

Answer 1

A simple way to visualize decomposition reaction to use generic terms let's pretend we have discovered an exclusive compound is the chemical formulaAZ this means a compound is composed of an imaginary element A bonded to memory element Z . we have a equation reaction that says AZ leads to A + Z it shows a decomposition reaction. this decomposition reaction example breaks one compound down into two elements

Answer 2

the generalized reaction for decomposition;
AB --------- A+ B

for example :
2H2O -------- 2H2 + 02