Question

Пожалуйста, срочно ❗❗K2O - KOHCaO - Ca(OH)2Na2O - NaOHFe2O3 - ? ​

Answer 1

Fe(OH)3,поскольку в данном случае Ферум трёхвалентный

Answer 2

K2O - potassium oxide KOHCaO - potassium hydroxycalcium oxide Ca(OH)2 - calcium hydroxide Na2O - sodium oxide NaOH - sodium hydroxide Fe2O3 - iron(III) oxide

Potassium oxide (K2O) is a chemical compound composed of two potassium (K) atoms and one oxygen (O) atom. It is an ionic compound and is commonly used in the production of glass and ceramics [[1]].

Potassium hydroxycalcium oxide (KOHCaO) is not a recognized chemical compound. It seems to be a combination of potassium hydroxide (KOH) and calcium oxide (CaO). Potassium hydroxide is a strong base, while calcium oxide is a basic oxide. However, without further information, it is difficult to determine the exact properties or uses of this combination.

Calcium hydroxide (Ca(OH)2), also known as slaked lime or hydrated lime, is a white powder that is sparingly soluble in water. It is commonly used in construction, agriculture, and as a pH regulator in various industries [[2]].

Sodium oxide (Na2O) is a chemical compound composed of two sodium (Na) atoms and one oxygen (O) atom. It is an ionic compound and is highly reactive with water, forming sodium hydroxide (NaOH) [[3]].

Sodium hydroxide (NaOH), also known as caustic soda or lye, is a strong base that is highly soluble in water. It is widely used in various industries, including chemical manufacturing, soap production, and water treatment [[4]].

Iron(III) oxide (Fe2O3) is a chemical compound composed of two iron (Fe) atoms and three oxygen (O) atoms. It is commonly known as rust and is formed when iron reacts with oxygen in the presence of moisture. Iron(III) oxide is a reddish-brown solid and is used in pigments, polishing agents, and as a catalyst in chemical reactions [[5]].

Please let me know if you need further information or clarification on any of these compounds.