PDF chapter test TRY NOW

Answer the following questions:
Answer variants:
Yes, They all are ionic compounds produced by the transfer of electrons.
Because magnesium burning form single product.
Decomposition reaction.
Due to the formation of yellowishiron sulphate solution
    
1. Why is magnesium burning referred to as a combination reaction?
 
2. Is there any similarity between compounds \(LiH\), \(MgO\), and \(K_2S\)?