Question

H2O_H2+? Ca+O=CaOCo2+H2O=? K2O+? =KOH дам 40 б​

Answer 1

Объяснение:

H2 + O2

Co2 + H2O = H2CO3

K2O+H2O =KOH

Answer 2

Відповідь:

Ок

Пояснення:

2H2O=2H2+O2

2Ca+O2=2CaO

CO2+H2O=H2CO3

K2O+H2O=2KOH

Answer 3

Reaction 1: H2O + H2 → H3O+

Water (H2O) reacts with hydrogen gas (H2) to form hydronium ions (H3O+). This is an acid-base reaction where water acts as a Brønsted-Lowry acid by donating a proton (H+ ion).

Reaction 2: CaO + CO2 → CaCO3

Calcium oxide (CaO) reacts with carbon dioxide (CO2) to form calcium carbonate (CaCO3). This reaction occurs when limestone is heated to produce lime (calcium oxide), which then reacts with atmospheric carbon dioxide to regenerate limestone.

Reaction 3: 2KOH + O2 → 2K2O + H2O

Potassium hydroxide (KOH) reacts with oxygen gas (O2) to form potassium oxide (K2O) and water (H2O). This is an oxidation-reduction reaction where potassium is oxidized from its +1 oxidation state in KOH to its +2 oxidation state in K2O. Oxygen acts as the oxidizing agent.

In summary, the reactions provided are: 1) H2O + H2 → H3O+ 2) CaO + CO2 → CaCO3 3) 2KOH + O2 → 2K2O + H2O

Let me know if you need any clarification or have additional questions!