197. (v21-111-10) Nomaium metall nitrat eritmasi sovutilganda 0,5 mol kristallogidrat hosii boldi, uning tarkibida kristailizatsion suvning massa ulushi 40,5 % ga teng, suvsiz tuzning massasi kristallizatsion suvning massasidan 38 g ga kop. Nomaium metallni toping.
A) Cr Р’) РЎРё
197. (v21-111-10) Nomaium metall nitrat eritmasi sovutilganda 0,5 mol kristallogidrat hosii boldi, uning tarkibida kristailizatsion suvning massa ulushi 40,5 % ga teng, suvsiz tuzning massasi kristallizatsion suvning massasidan 38 g ga kop. Nomaium metallni toping.
A) Cr Р’) РЎРё C) Fe D)AI