Question

P -----> P205 -----> H3PO4 -----> Ca3 (PO4)2

Answer 1

Вот так вот
надеюсь, видно

Answer 2

The chemical equation you provided represents a series of reactions involving phosphorus (P), phosphoric acid (H3PO4), and calcium phosphate (Ca3(PO4)2). Let's break down the equation step by step:

1. P -> P205: The first reaction involves the conversion of elemental phosphorus (P) into phosphorus pentoxide (P205). Phosphorus pentoxide is a white, crystalline solid that is commonly used as a dehydrating agent in chemical reactions.

2. P205 -> H3PO4: The second reaction involves the reaction of phosphorus pentoxide (P205) with water (H2O) to form phosphoric acid (H3PO4). Phosphoric acid is a colorless, odorless liquid that is commonly used in fertilizers, food additives, and as a rust remover.

3. H3PO4 -> Ca3(PO4)2: The final reaction involves the reaction of phosphoric acid (H3PO4) with calcium hydroxide (Ca(OH)2) to form calcium phosphate (Ca3(PO4)2). Calcium phosphate is a white, crystalline solid that is commonly used as a nutritional supplement and in the production of fertilizers and animal feed.

Overall, the series of reactions you provided represents the conversion of elemental phosphorus into calcium phosphate through the intermediate formation of phosphoric acid.

Please note that the information provided here is based on general knowledge of chemistry. If you require more specific information or details about these reactions, please let me know.