Дати назви речовинам за формулами. Розподіліть

речовини по класам.

1.MgCO3;

2.CrO; 3.BaCl2;

4.H2CO3;

5.KOH;

6.CuO;

7.H2SiO3;

8.B2O3;

9.Fe2(SO4)3;

10.Mn(OH)2

11.HBr.
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