Question

Помогите пожалуйста! Очень срочно! Нужно расписать каждую реакцию и её название: P2O5 --> H3PO4 --> Ca (H2PO4)2 --> Ca3(PO4)2

Answer 1

P2O5 + 3H2O = 2H3PO4

4H3PO4 + Ca3(PO4)2 = 3Ca(H2PO4)2

Ca(H2PO4)2 + 2Ca(OH)2 = Ca3(PO4)2 + 4H2O

Answer 2

Reaction 1: P2O5 -> H3PO4

The reaction between P2O5 and H2O produces phosphoric acid (H3PO4). Phosphorus pentoxide (P2O5) is a covalent compound that reacts with water (H2O) to form phosphoric acid. The balanced chemical equation for this reaction is:

P2O5 + 3H2O -> 2H3PO4

Reaction 2: H3PO4 -> Ca(H2PO4)2

The reaction between phosphoric acid (H3PO4) and calcium hydroxide (Ca(OH)2) produces calcium dihydrogen phosphate (Ca(H2PO4)2). The balanced chemical equation for this reaction is:

2H3PO4 + 3Ca(OH)2 -> Ca(H2PO4)2 + 6H2O

Reaction 3: Ca(H2PO4)2 -> Ca3(PO4)2

The reaction between calcium dihydrogen phosphate (Ca(H2PO4)2) and calcium hydroxide (Ca(OH)2) produces calcium phosphate (Ca3(PO4)2). The balanced chemical equation for this reaction is:

3Ca(H2PO4)2 + 6Ca(OH)2 -> Ca3(PO4)2 + 12H2O

In summary, the reactions can be described as follows: 1. P2O5 reacts with H2O to form H3PO4. 2. H3PO4 reacts with Ca(OH)2 to form Ca(H2PO4)2. 3. Ca(H2PO4)2 reacts with Ca(OH)2 to form Ca3(PO4)2.

Please note that these reactions are simplified and may not represent the actual reaction conditions or mechanisms.