8zbej8365q 8zbej8365q 24-08-2021 Chemistry contestada Which of the following are decomposition reactions? A. CH4 (9) +202 (9) - CO2 (g) + 2H20 (9) B. N2 (9) + 3H2 (9) ► 2NH3 (9) C. CaCO3 (s) - Cao (s) + CO2 (9) D. 2H20 (1) ► 2H2 (9) + O2 (9)