Write down separately from the above formulas: oxides, acids, bases and salts – K2CO3; BaO;

Write down separately from the above formulas: oxides, acids, bases and salts – K2CO3; BaO; H2O; H3PO4; SO3; AI (OH) 3; HCI; ZnCI2; NaOH; Cu (NO3) 2; Mg (OH) 2; H2CO3.

Oxides are compounds with oxygen. From the above list: BaO – barium oxide, H2O – hydrogen oxide, SO3 – sulfur oxide.

Bases are compounds containing the OH hydroxyl group: Al (OH) 3 – aluminum hydroxide, NaOH – sodium hydroxide, Mg (OH) 2 – magnesium hydroxide.

Salts are compounds containing an acidic residue: K2CO3 – potassium carbonate, ZnCl2 – zinc chloride, Cu (NO3) 2 – copper nitrate.

Acids are substances consisting of hydrogen and an acid residue: H3PO4 – phosphoric acid, HCl – hydrochloric acid, H2CO3 – carbonic acid.