Question

Which of the following is an example of a decomposition reaction? a.) H2 + O → H2O b.) MgO2 → Mg + O2 c.) MgSO4 + 2NaCl → MgCl2 + Na2SO4 d.) 2Na + Cl2 → 2NaCl

Answer 1

Option (b), MgO₂ ⇒ Mg + O₂

Step-by-step explanation:

The example of a decomposition reaction among the given options is option (b).

A decomposition reaction is a type of chemical reaction in which a single reactant breaks down into two or more simpler products. In the case of option b, MgO₂ decomposes into Mg and O₂, adhering to this definition.