Question

Провести цепочку химических превращений. Ca -> CaO -> Ca(OH)² -> CaSO⁴ -> Cu³(PO⁴)²

Answer 1

2Ca + O2 ----> 2CaO
CaO + H2O ----> Ca(OH)2
Ca(OH)2 + H2SO4 ----> CaSO4 + 2H2O
3CaSO4 + 2K3PO4 ----> Ca3(PO4)2 + 3K2SO4

Answer 2

Chemical Transformations of Ca -> CaO -> Ca(OH)² -> CaSO⁴ -> Cu³(PO⁴)²

The given chemical transformations involve the conversion of calcium (Ca) to calcium oxide (CaO), then to calcium hydroxide (Ca(OH)²), followed by the formation of calcium sulfate (CaSO⁴), and finally the formation of copper phosphate (Cu³(PO⁴)²).

1. Ca -> CaO: The first transformation is the conversion of calcium (Ca) to calcium oxide (CaO). This process is known as calcination, where calcium carbonate (CaCO₃) is heated to produce calcium oxide and carbon dioxide gas. The chemical equation for this reaction is:

   CaCO₃(s) -> CaO(s) + CO₂(g)
   

The calcium oxide produced is a white, crystalline solid commonly known as quicklime.

2. CaO -> Ca(OH)²: The second transformation involves the reaction of calcium oxide (CaO) with water (H₂O) to form calcium hydroxide (Ca(OH)²). This process is known as slaking or hydration. The chemical equation for this reaction is:

   CaO(s) + H₂O(l) -> Ca(OH)²(s)
   

Calcium hydroxide, also known as slaked lime or hydrated lime, is a white, powdery solid that is slightly soluble in water.

3. Ca(OH)² -> CaSO⁴: The third transformation involves the reaction of calcium hydrox