Odpowiedzi

2010-02-07T20:05:16+01:00
1.
Ca + 2HNO3 = Ca(NO3)2 + H2

2.
CaO + 2HNO3 = Ca(NO3)2 + H2O

3.
Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O

4.
CaO + N2O5 = Ca(NO3)2

5.
2HNO3 + CaCO3 = Ca(NO3)2 + H2CO3

6.
Ca(OH)2 + 2NaNO3 = Ca(NO3)2 + 2NaOH

7.
Ca + Mg(NO3)2 = Ca(NO3)2 + Mg

8.
CaCl2 + Zn(NO3)2 = ZnCl2 + Ca(NO3)2
2010-02-07T20:16:17+01:00
1. Ca + 2HNO₃ -> Ca(NO₃)₂ + H₂
Ca⁰ + 2H⁺ + -> Ca²⁺ + NO₃⁻ + H₂
Ca⁰ + 2H⁺ ->Ca²⁺ + H₂

2. CaO + 2HNO₃ -> Ca(NO₃)₂ + H₂O
CaO + 2H⁺ + NO₃⁻ ->Ca²⁺ + NO₃⁻ + H₂O
CaO + 2H⁺ ->Ca²⁺ + H₂O

3.Ca(OH)₂ + 2HNO₃ -> Ca(NO₃)₂ + H₂O
Ca²⁺ + 2OH⁻ + 2H⁺ + NO₃⁻ ->Ca²⁺ + NO₃⁻ + H₂O
2OH⁻ + 2H⁺ -> H₂O

4. CaO + N₂O₅->Ca(NO₃)₂

5. Ca(OH)₂ + N₂O₅ -> Ca(NO₃)₂ + H₂O

hmm w tym 4 i 5 cos mi sie nie zgadza z ilascia tlenu
6. Ca(OH)₂ + Cu(NO₃)₂-> Ca(NO₃)₂ + Cu(OH)₂

7.CaSO₄ + Cu(NO₃)₂ -> Ca(NO₃)₂ + CuSO₄

8. Ca + Cu(NO₃)₂ -> Ca(NO₃)₂ + Cu


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