Question

Помогиииииииииите пожааааалуйста Все реакции с P, P2O5, H3PO4, HNO3

Answer 1

Фосфор реагирует с активными металлами
P+3Na=Na3P
Красный и белый фосфор самовозгараются во фторе и хлоре
2P+3Cl2=2PCl3
В реакции с кислородом
При избытке кислорода получается P2O5, при недостатке P2O3
Оксид фосфора реагирует с основными оксидами и основариями
3Na2O+P2O5=2Na3PO4
6NaOH+P2O5=2Na3PO4+3H2O
H3PO4 имеет свойства обычной кислоты
Азотная разбавленная
С неактивным металлом= соль+ NO + H2O
Металл средней активности= соль + N2 +H2O
Активный= соль +NH4NO3+ H2O

Концентрированная:
С неметаллом= кислота неметалла в высшей степени окисления + NO или NO2
С неакт. Металлом или средней активности= соль+ NO2 +H2O
С активным металлом =соль+ N2O +H2O

Answer 2

Reactions with P, P2O5, H3PO4, HNO3

When discussing reactions with P (phosphorus), P2O5 (phosphorus pentoxide), H3PO4 (phosphoric acid), and HNO3 (nitric acid), it is important to note that these substances can undergo various chemical reactions depending on the conditions and reactants involved. Here are some common reactions associated with these compounds:

1. Reactions with Phosphorus (P): - Combustion: Phosphorus can react with oxygen to undergo combustion, producing phosphorus pentoxide (P2O5). The balanced equation for this reaction is: ``` 4P + 5O2 -> 2P2O5 ``` This reaction is highly exothermic and can release a significant amount of heat and light.

2. Reactions with Phosphorus Pentoxide (P2O5): - Hydrolysis: P2O5 can react with water (H2O) to form phosphoric acid (H3PO4). The balanced equation for this reaction is: ``` P2O5 + 3H2O -> 2H3PO4 ``` This reaction is highly exothermic and can release a large amount of heat. - Reaction with bases: P2O5 can react with bases to form salts known as phosphates. For example, when P2O5 reacts with sodium hydroxide (NaOH), sodium phosphate (Na3PO4) is formed: ``` P2O5 + 6NaOH -> 2Na3PO4 + 3H2O ```

3. Reactions with Phosphoric Acid (H3PO4): - Neutralization: Phosphoric acid can react with bases to form salts and water. For example, when phosphoric acid reacts with sodium hydroxide, sodium phosphate and water are formed: ``` H3PO4 + 3NaOH -> Na3PO4 + 3H2O ``` - Dehydration: Phosphoric acid can undergo dehydration reactions to form various phosphorus-containing compounds. For example, when phosphoric acid is heated, it can lose water molecules to form pyrophosphoric acid (H4P2O7): ``` 2H3PO4 -> H4P2O7 + H2O ```

4. Reactions with Nitric Acid (HNO3): - Neutralization: Nitric acid can react with bases to form salts and water. For example, when nitric acid reacts with sodium hydroxide, sodium nitrate and water are formed: ``` HNO3 + NaOH -> NaNO3 + H2O ``` - Redox reactions: Nitric acid is a strong oxidizing agent and can participate in various redox reactions. For example, it can oxidize metals such as copper (Cu) to form copper(II) nitrate (Cu(NO3)2): ``` 3Cu + 8HNO3 -> 3Cu(NO3)2 + 2NO + 4H2O ```

Please note that these are just a few examples of reactions involving phosphorus, phosphorus pentoxide, phosphoric acid, and nitric acid. There are many more reactions possible depending on the specific conditions and reactants involved.

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