5 subs solide = CaCl2 / CuSO4 / Al2O3 / AlCl3 / NaOH
3 subs lichide = H2O / H2SO4 / HBr
4 subst gazoase = NH3 / HCl / Cl2 / Br2
3 pietre pretioase = smarald / turcoaz / diamant
3 matale pretioase = Au / Ag / Pt
4 subs solubile in apa = NaCl / CuSO4 / KOH / AgNO3
4 subst insolubile in apa = BaSO4 / Cu(OH)2 / Fe(OH)3 / AgCl
5 metale = Mg / Al / Na / Ba / Ca / K
5 nemetale = N / S / B / Cl / Br
4 subst deccara nun putem sa traim = H2O, O2 /
5 subst organice = CH4 / alcool etilic / acid acetic / acetona / tetraclorura de carbon
6 subst colore = Fe2O3 roscat / AgCl alb / PbS neagra / CuCl2 verde / Cu(OH)2 albastru / Al(OH)3
4 subst incolore = NaCl / KCl / AgNO3 / NaNO3
5 subst di bucatarie = NaCl / otet / bicarbonat de amoniu / bicarbonat de sodiu / zahar