Question

Возможна ли реакция фосфора с магнием?Если возможно,запишите уравнение реакции и схему окислительно-восстановительной реакции,а так же составьте уравнение реакции взаимодействия фосфида магния с водой.

Answer 1

Да, возможна. В результате данной реакции происходит образование фосфида магния:

3Mg + 2P -> Mg3P2

С расставленными степенями окисления:

3Mg(0) + 2P(0) -> Mg3(+2)P2(-3)

Mg(0)--(-2ē)-->Mg(+2)|2|×3

- восстановитель(отдает электроны), процесс окисления

P(0)--(+3ē)-->P(-3) | 3 | ×2

- окислитель(получает электроны), процесс восстановления.

Фосфид магния подвергается гидролизу:

Mg3P2 + 6H2O -> 3Mg(OH)2⬇️ + 2PH3⬆️

Answer 2

Can Phosphorus React with Magnesium?

Yes, phosphorus can react with magnesium. The reaction between phosphorus and magnesium results in the formation of magnesium phosphide.

The balanced chemical equation for the reaction is:

Phosphorus + Magnesium → Magnesium Phosphide

The reaction can be represented as:

3 Mg + 2 P → Mg3P2

Oxidation-Reduction Reaction Scheme

In the reaction between phosphorus and magnesium, magnesium undergoes oxidation, while phosphorus undergoes reduction. This can be represented as an oxidation-reduction (redox) reaction:

Oxidation (Magnesium): - Magnesium loses electrons and increases its oxidation state from 0 to +2.

Reduction (Phosphorus): - Phosphorus gains electrons and decreases its oxidation state from 0 to -3.

Reaction of Magnesium Phosphide with Water

When magnesium phosphide reacts with water, it produces phosphine gas and magnesium hydroxide. The balanced chemical equation for this reaction is:

Magnesium Phosphide + Water → Phosphine + Magnesium Hydroxide

The reaction can be represented as:

Mg3P2 + 6 H2O → 2 PH3 + 3 Mg(OH)2

This reaction releases phosphine gas and forms magnesium hydroxide as a product.

These reactions demonstrate the chemical properties of phosphorus and magnesium when they react with each other and with water.