Question

Никак не получается...Помогите, пожалуйста. Заранее спасибо)Нужно расставить коэффициенты методом электронного баланса; изобразить процессы перехода электронов; указать окислитель, восстановительCaHPO3 + AgNO3 + H2O → CaHPO4 + Ag + HNO3

Answer 1

Вот так должно быть.

Answer 2

Balancing the Chemical Equation and Electron Transfer Process

To balance the chemical equation and determine the electron transfer processes, we'll start by balancing the chemical equation for the given reaction:

Chemical Equation: ``` CaHPO3 + AgNO3 + H2O → CaHPO4 + Ag + HNO3 ```

Now, let's balance the chemical equation using the method of electron balance.

Balancing the Chemical Equation Using Electron Balance

The method of electron balance involves balancing the number of electrons lost and gained in the redox reaction. This is done by assigning oxidation numbers to the elements involved and then balancing the electrons transferred.

1. Assigning Oxidation Numbers: - In CaHPO3, the oxidation number of Ca is +2, H is +1, P is +5, and O is -2. - In AgNO3, the oxidation number of Ag is +1, N is +5, and O is -2. - In CaHPO4, the oxidation number of Ca is +2, H is +1, P is +5, and O is -2. - In Ag, the oxidation number of Ag is 0. - In HNO3, the oxidation number of H is +1, N is +5, and O is -2.

2. Balancing the Redox Reaction: - The oxidation state of Ag changes from +1 in AgNO3 to 0 in Ag, indicating that Ag is being reduced. - The oxidation state of P changes from +5 in CaHPO3 to +5 in CaHPO4, indicating that there is no change in the oxidation state of P.

Electron Transfer Process

The electron transfer process can be illustrated by showing the oxidation and reduction half-reactions:

Oxidation Half-Reaction: ``` CaHPO3 → CaHPO4 + 2e- ```

Reduction Half-Reaction: ``` Ag+ + e- → Ag ```

In the oxidation half-reaction, CaHPO3 loses 2 electrons to form CaHPO4, while in the reduction half-reaction, Ag+ gains 1 electron to form Ag.

Identifying the Oxidizing Agent and Reducing Agent

- Oxidizing Agent: The substance that gets reduced is the oxidizing agent. In this case, AgNO3 is the oxidizing agent as it causes the reduction of Ag+ to Ag. - Reducing Agent: The substance that gets oxidized is the reducing agent. In this case, CaHPO3 is the reducing agent as it causes the oxidation of CaHPO3 to CaHPO4.

By following these steps, the chemical equation can be balanced using the method of electron balance, and the electron transfer processes can be illustrated.