4. Bora co ennuse TC& C okcn xamn meJIoy HbIX (IA rpymmb II.U.M enze JIeeB a) u m eJIOY HO3e MeJIb HbIX (C a, Sr u Ba)MeTaJIJIOB C o6pa 30Ba HHeM : 0CHO BaHn a M(OH)_(x) , rge M- MeTaJI JI, x-MH^- nekc l win 2 . Cocr 'aBbT e ypa BHeH peaknuỷ: a) Li_(2)O+ldots H_(2)O= 6) Na_(2)O+H_(2)O= B) -CaO+H_(2)O= r) BaO+H_(2)O=

a) b) c) d) Explanation:a) Lithium oxide (Li2O) reacts with water (H2O) to form lithium hydroxide (LiOH).b) Sodium oxide (Na2O) reacts with water (H2O) to form sodium hydroxide (NaOH).c) Calcium oxide (CaO) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2).d) Barium oxide (BaO) reacts with water (H2O) to form barium hydroxide (Ba(OH)2).