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Najlepsze rozwiązanie

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  ewka13 4.2.2012 (19:36)

  1.
  Ca + H_{2} \to CaH_{2}
  
  2.
  CaH_{2} + 2H_{2}O \to Ca(OH)_{2} + 2H_{2}\uparrow
  
  3.
  Ca(OH)_{2} + 2H_{2}SO_{4} \to Ca(HSO_{4})_{2} + 2H_{2}O
  
  4.
  Ca(HSO_{4})_{2} \to \downarrow CaSO_{4} + H_{2}SO_{4}
  
  5.
  CaSO_{4} + H_{2}SO_{4} \to Ca(HSO_{4})_{2}
  
  6.
  2Ca + O_{2} \to 2CaO
  
  7.
  CaO + H_{2}O \to Ca(OH)_{2}
  
  8.
  CaO + 2H_{2}SO_{4} \to Ca(HSO_{4})_{2} + H_{2}O
  
  9.
  Ca(OH)_{2} + H_{2}SO_{4} \to \downarrow CaSO_{4} + 2H_{2}O
  
  10.
  Ca + 2H_{2}O \to Ca(OH)_{2} + H_{2}\uparrow
  
  11.
  CaH_{2} + H_{2}SO_{4} \to \downarrow CaSO_{4} + 2H_{2}\uparrow
  
  12.
  Ca(OH)_{2} + CO_{2} \to \downarrow CaCO_{3} + H_{2}O
  
  13.
  CaCO_{3} + H_{2}SO_{4} \to \downarrow CaSO_{4} + H_{2}O + CO_{2}\uparrow.

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