Chemistry

Roger Case

6 October, 11:44

Which of the following is a decomposition reaction?

A. 2Mg+O2 - > 2MgO

B. CH4+2O2 - > CO2+H2

C. 2H2O + 2Na - > 2NaOH+H2

D. CaCO3 - >CaO+CO2

+2

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