Period three elements are Na, Mg, Al, Si, P, S, and Cl (not including Ar).
Na + O2 ==> Na2O You balance.
Mg + O2 ==> MgO Both Na2O and MgO are basic oxides.
Al + O2 ==> Al2O3 an amphotere.
S + O2 ==> SO2 an acidic oxide.
I think the point of this exercise is to make you aware that the oxides go from basic on the left (adding water makes NaOH or Mg(OH)2 but Mg(OH)2 is less basic (more acidic) than NaOH), to Al which is an amphotere (sometimes acidic, sometimes basic) to P, S, and Cl that become more acidic, again, from left to right. You must balance all of the equations.
So we have a question for chem. homework and i really don't understand. can you please explain it.....
Question:There is a change in the type of oxides formed with the period three elements. Indicate the type of compounds formed (ionic, amphoteric, covalent) when the period three elements react with oxygen. Give balanced equations.
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