Question

Ряд формул, в котором все вещества – оксиды (кислоты, основания, соли): A. H3PO4, HCl, Н2SiO3 . В. С02, K2O, BaO. Б. CaSO4, Na2S, KCl. Г. КОН, Na0H, Mg(OH)2.

Answer 1

Ответ:
1)Оксиды-В)CO2,K2O,BaO
2)Кислоты-а)H3PO4,HCl,H2SiO3
3)Основания-г)KOH,NaOH,Mg(OH)2
4)Соли-б)CaSO4,Na2S,KCl

Answer 2

Formulas of Oxides for Acids, Bases, and Salts

A. The formulas for the given substances are: - H3PO4 (phosphoric acid) - HCl (hydrochloric acid) - H2SiO3 (silicic acid) [[1]]

B. The formulas for the given substances are: - CO2 (carbon dioxide) - K2O (potassium oxide) - BaO (barium oxide) [[2]]

C. The formulas for the given substances are: - CaSO4 (calcium sulfate) - Na2S (sodium sulfide) - KCl (potassium chloride) [[3]]

D. The formulas for the given substances are: - KOH (potassium hydroxide) - NaOH (sodium hydroxide) - Mg(OH)2 (magnesium hydroxide) [[4]]

Please note that these formulas represent the chemical compounds formed by the combination of the respective elements.