Witaj :)
[tex]1.\ CrO+H_2SO_4\rightarrow CrSO_4+H_2O\\\\2.\ Li_2O+H_2O\rightarrow 2LiOH\\\\3.\ CaO+2HCl\rightarrow CaCl_2+H_2O\\\\4.\ K_2O+H_2O\rightarrow 2KOH\\\\5. \ 3Na_2O+2H_3PO_4\rightarrow 2Na_3PO_4+3H_2O\\\\6.\ BaO+H_2O\rightarrow Ba(OH)_2\\\\7. \ MgO+H_2SO_4\rightarrow MgSO_4+H_2O\\\\8. MnO+2HCl\rightarrow MnCl_2+H_2O[/tex]