Treść zadania

Najlepsze rozwiązanie

• 

  3 0

  ewka13 7.6.2011 (00:21)

  A.
  Zad 1.
  a)
  2Na + 2HCl \to 2NaCl + H_{2}\uparrow
  
  b)
  K_{2}O + H_{2}SO_{3} \to K_{2}SO_{3} + H_{2}O
  
  c)
  2HCl + Ca(OH)_{2} \to CaCl_{2} + 2H_{2}O
  
  Zad 2.
  a)
  Ca(OH)_{2} + CO_{2} \to CaCO_{3}\downarrow + H_{2}O - podkreślić
  
  b)
  CuO + 2HNO_{3} \to Cu(NO_{3})_{2} +H_{2}O
  
  c)
  FeCl_{3} + 3KOH \to Fe(OH)_{3}\downarrow + 3KCl - podkreślić
  
  d)
  Ba(OH)_{2} + H_{2}S \to BaS + 2H_{2}O
  
  Zad 3.
  a)
  MgO + 2HBr \to MgBr_{2} + H_{2}O
  
  b)
  2NaOH + H_{2}SO_{4} \to Na_{2}SO_{4} + 2H_{2}O
  
  c)
  3Ba(OH)_{2} +2 H_{3}PO_{4} \to Ba_{3}(PO_{4})_{2}\downarrow +6H_{2}O
  
  Zad 4
  Pb(NO_{3})_{2} + Na_{2}S \to PbS\downarrow + 2NaNO_{3}
  
  Pb^{2+} + 2NO_{3}^{-} + 2Na^{+} + S^{2-} \to PbS \downarrow + 2Na^{+} + 2NO_{3}^{-}
  
  Pb^{2+} + S^{2-} \to PbS \downarrow
  
  Zad 5
  2K + Cl_{2} \to 2 KCl
  
  2K + 2HCl \to 2KCl + H_{2}\uparrow
  
  K_{2}O + 2HCl \to 2KCl + H_{2}O
  
  KOH + HCl \to KCl + H_{2}O
  
  B.
  Zad 1.
  a)
  K_{2}O + 2HCl \to 2KCl + H_{2}O
  
  b)
  Ca + H_{2}SO_{4} \to CaSO_{4}\downarrow + H_{2}\uparrow
  
  c)
  Ba(OH)_{2} + 2HBr \to BaBr_{2}+ 2H_{2}O
  
  Zad 2.
  a)
  Ba(OH)_{2} + SO_{2} \to BaSO_{3}\downarrow + H_{2}O-podkreślić
  
  b)
  6HCl + 2Al \to 2AlCl_{3} + 3H_{2}\upparow
  
  c)
  CuSO_{4} + Na_{2}S \to CuS \downarrow + Na_{2}SO_{4} - podkreślić
  
  d)
  2KOH + H_{2}SO_{4} \to K_{2}SO_{4} + 2H_{2}O
  
  Zad 3.
  a)
  K_{2}O + 2HI \to 2KI + H_{2}O
  
  b)
  Na_{2}O + CO_{2} \to Na_{2}CO_{3}
  
  c)
  3MgO + 2H_{3}PO_{4} \to Mg_{3}(PO_{4})_{2} +3H_{2}O
  
  Zad 4.
  2AgNO_{3} + CaCl_{2} \to 2AgCl \downarrow + Ca(NO_{3})_{2}
  
  2Ag^{+} + 2NO_{3}^{-} + Ca^{2+} + 2Cl^{-} \to 2AgCl\downarrow + Ca^{2+} + 2NO_{3}^{-}
  
  2Ag^{+} + 2Cl^{-} \to 2AgCl\downarrow
  
  Zad 5.
  2Na + Cl_{2} \to 2NaCl
  
  2Na + 2HCl \to 2NaCl + H_{2}\uparrow
  
  Na_{2}O + 2HCl \to 2NaCl + H_{2}O
  
  NaOH + HCl \to NaCl + H_{2}O.

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