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Gasiti cite doua exemple de baze , acizi , si saruri . Si de aflat masa moleculara si partea de masa a fiecarui element din molecule. Ajutatima va rog )

Răspuns :

Oxizi : CO ( M molec =A c + A o =12+16= 28 )

            SO2 ( M = A s + Ao x 2 = 32 + 16 x 2 = 32+ 32 =64

Baze :  KOH ( M = A k + A o +A H  = 39+16 +1 = 56 )

            NaOH ( M = A Na + A o + A H = 23 +16+1 = 40

Acizi : H2SO4 ( M = A H x2 + A s +A o x 4 )= 1 x 2 + 32 + 16 × 4 = 2 +32 + 64  = 100

         HCl ( M = A H + A Cl = 1+ 35.5 = 36.5

Saruri : NaCl ( M = A Na + A Cl = 23+35.5 = 58.5

              Na2CO3 ( M = A Na × 2 + A c + A o ×3 = 23 × 2+ 12+ 16 × 3 = 46+ 12+ 48 = 106