YALL can you please answer this Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g).

CaO

Explanation:

 The chemical reactants are;

            Calcium metal = Ca

             Oxygen gas  = O₂  

 Now let us write the reaction:

     2Ca   +  O₂  →  2CaO

The product is CaO in solid form.

This reaction is a combination or synthesis reaction in which two substances combine to give a single product.