Question

Which of the following are decomposition reactions? ch4 (g) + o2 (g) → co2 (g) + h2o (l) cao (s) + co2 (g) → caco3 (s) mg (s) + o2 (g) → mgo (s) pbco3 (s) → pbo (s) + co2 (g)

Answer 1

I cant really see the individual problems very well but i hope this helps

Step-by-step explanation:

Decomposition = one thing -> 2 or more things

Synthesis= 2 or more things -> 1 thing