Question

Соляная кислота реагирует с каждым из двух веществ,формула которых а)Na2SO4 и CaO. б)Na2SO3 и SiO2 в)KOH и Cu г)Na2CO3 и MnO2. Напишите уравнение реакции для этой пары веществ. Для уравнения ОВР реакции составьте схему электронного баланса, укажите окислитель и восстановитель, процессы окисления и восстановления.

Answer 1

Вроде бы так. Надеюсь, помог. Забыл, перед HCl 2 поставь

Answer 2

Reaction and Electron Balance Scheme for Hydrochloric Acid with Sodium Sulfate and Calcium Oxide

When hydrochloric acid reacts with sodium sulfate and calcium oxide, the following reactions occur:

Reaction with Sodium Sulfate (Na2SO4): The reaction between hydrochloric acid and sodium sulfate can be represented by the following chemical equation: ``` 2HCl + Na2SO4 → 2NaCl + H2SO4 ``` This reaction produces sodium chloride (NaCl) and sulfuric acid (H2SO4).

Reaction with Calcium Oxide (CaO): The reaction between hydrochloric acid and calcium oxide can be represented by the following chemical equation: ``` 2HCl + CaO → CaCl2 + H2O ``` This reaction produces calcium chloride (CaCl2) and water (H2O).

Electron Balance Scheme and Identification of Oxidizing and Reducing Agents

In the reaction between hydrochloric acid and sodium sulfate, the electron balance scheme can be illustrated as follows:

Oxidation Process: - The oxidation process involves the loss of electrons. - In this reaction, chlorine in HCl is oxidized from -1 to 0, gaining one electron.

Reduction Process: - The reduction process involves the gain of electrons. - In this reaction, sulfur in Na2SO4 is reduced from +6 to +4, losing two electrons.

Oxidizing Agent: The oxidizing agent is the substance that gets reduced. In this case, sodium sulfate (Na2SO4) is the oxidizing agent.

Reducing Agent: The reducing agent is the substance that gets oxidized. In this case, hydrochloric acid (HCl) is the reducing agent.

In the reaction between hydrochloric acid and calcium oxide, the electron balance scheme and identification of oxidizing and reducing agents can be similarly determined.

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