Question

P4-P2O5-H3PO4_Ca(PO4)2-H2Po4-H2 помогите решить превращение веществ!!!

Answer 1

1) P₄ + 5O₂ = 2P₂O₅
2) P₂O₅ + 3H₂O = 2H₃PO₄ 
3) 2H₃PO₄ + 3CaO = Ca₃(PO₄)₂ + 3H₂O
а дальше не знаю

Answer 2

Chemical Reactions and Transformations

Chemical reactions involve the transformation of substances into different substances through the rearrangement of atoms. In the case of the given substances P4, P2O5, H3PO4, Ca(PO4)2, H2PO4, and H2, it seems that you are interested in understanding the transformations that can occur between these compounds.

To provide a detailed explanation, it would be helpful to know the specific reaction or transformation you are looking for. However, I can provide some general information about these substances and their possible reactions based on their chemical properties.

P4 is the chemical formula for phosphorus, which exists as a white or yellow solid. It is highly reactive and can undergo various reactions with other substances.

P2O5 is the chemical formula for diphosphorus pentoxide, which is an oxide of phosphorus. It is a white, crystalline solid that reacts with water to form phosphoric acid (H3PO4).

H3PO4 is the chemical formula for phosphoric acid, which is a weak acid. It is commonly used in fertilizers, detergents, and food additives.

Ca(PO4)2 is the chemical formula for calcium phosphate, which is a white, crystalline solid. It is the main component of tooth enamel and bone.

H2PO4 refers to the dihydrogen phosphate ion, which is formed when phosphoric acid loses one proton (H+). It can exist in various forms, such as monosodium phosphate (NaH2PO4) or calcium dihydrogen phosphate (Ca(H2PO4)2).

H2 is the chemical formula for hydrogen gas, which is a colorless, odorless gas. It is highly flammable and can react with various substances under appropriate conditions.

Based on these substances, here are some possible reactions and transformations that can occur:

1. Reaction between NaOH and P2O5: 4 NaOH + P2O5 → 2 Na2HPO4 + H2O. 2. Reaction between CaO and H3PO4: CaO + H3PO4 → Ca(H2PO4)2. 3. Transformation of Ca(H2PO4)2: Ca(H2PO4)2 can further react to form other calcium phosphate compounds, such as CaHPO4 or Ca3(PO4)2. 4. Transformation of P4: Phosphorus (P4) can react with oxygen (O2) to form diphosphorus pentoxide (P2O5). 5. Transformation of H3PO4: Phosphoric acid (H3PO4) can react with other substances, such as metals or bases, to form various salts or other compounds.

Please provide more specific information or a particular reaction you would like to explore further, and I will be happy to assist you.