Question

Mg + O2 ⇒ Al + Cl2 ⇒ P + O2 ⇒ H2 + Cl2 ⇒ Na + S ⇒ Al + O2 ⇒

Answer 1

2Mg+O2=2MgO
2Al+3Cl2=2AlCl3
4P+5O2=2P2O5
H2+Cl2=2HCl
2Na+S=Na2S
4Al+3O2=2Al2O3

Answer 2

It seems like you have a list of chemical reactions, but the product of the last reaction is missing. To complete the series of reactions, let's add the product for the last reaction:

Mg + O2 → MgO (magnesium oxide) Al + Cl2 → AlCl3 (aluminum chloride) P + O2 → P2O5 (phosphorus pentoxide) H2 + Cl2 → 2HCl (hydrogen chloride) Na + S → Na2S (sodium sulfide) Al + O2 → Al2O3 (aluminum oxide)

So far, we have the following products from each reaction: magnesium oxide (MgO), aluminum chloride (AlCl3), phosphorus pentoxide (P2O5), hydrogen chloride (HCl), sodium sulfide (Na2S), and aluminum oxide (Al2O3).

Now, we need the product for the last reaction:

[Missing reactant] + O2 → [Product]

Please provide the reactant for the last reaction, and I can help you find the product.