Распредели вещества по группам

\(\mathrm{NH\_3}\) , \(\mathrm{H\_2O}\) , \(\mathrm{CaO}\) , \(\mathrm{BaBr\_2}\) , \(\mathrm{Cl\_2}\) , \(\mathrm{CO\_2}\) , \(\mathrm{LiF}\) , \(\mathrm{NaCl}\) , \(\mathrm{K\_2O}\) , \(\mathrm{K\_2SO\_4}\)