Mol, Molyar massa va massa

I. BOB. Kimyoning asosiy tushunchalari
1. Kimyoning asosiy tushunchalari

1. Kimyo fani nimani o’rganadi? Kimyo fanining vazifalarini ayting.

2. Materiya va modda haqida ma’lumot bering. Modda qanday xillarga ajratiladi? Aralashma va sof (toza) moddaning bir-biridan farqini ayting. Javobingizni misollar asosida izohlang.
3. Kimyoviy element, atom, molekula, modda nima ekanini ayting. Valentlikka ta’rif bering. Allatropiyani tushuntiring va misollar keltiring.
4. Kimyoviy xossa, fizikaviy xossa, kimyoviy hodisa, fizikaviy hodisa kabi tushunchalarning ta’rifini ayting va misollar keltiring.
5. Valentlik asosida quyidagi moddalarining formulalarini keltirib chiqaring.
, , , , , , , , , , ,
, ,
6. Quyida berilgan moddalardagi elementlarning valentligini aniqlang. CaO, Al₂O₃, FeO, Fe₂O₃, N₂O, NO, N₂O₃, NO₂, N₂O₅, SO₂, SO₃, CO, CO₂, Cr₂O₃, CrO₃, PbO, PbO₂, KOH, NaOH, LiOH, RbOH, Be(OH)₂, Ca(OH)₂, Ba(OH)₂, Fe(OH)₂, Fe(OH)₃, Cu(OH)₂, CuOH, Cr(OH)₃, Mn(OH)₂, Mn(OH)₄, Al(OH)₃, Zn(OH)₂, KCl, MgCl₂, CaSO₄, NaNO₃, FeCl₂, FeCl₃, Cr₂(SO₄)₃, CuCl, CuCl₂, KHSO₄, NaHSO₄, LiHCO₃, NaHCO₃, CaHPO₄, NaH₂PO₄, KH₂PO₄, LiH₂PO₄, CaOHCl, Al(OH)₂Cl, AlOHCl₂, ZnOHCl, AlOHSO₄, BaOHCl.