Odpowiedzi

2011-08-26T22:00:03+02:00

a)

1. 2NaOH + H2S -> Na2S + 2H2O

2Na[+] + 2OH[-] + 2H[+] + S2[-] -> 2Na[+] + S[2-] + 2H2O

2OH[-] + 2H[+] -> 2H2O

2.NaOH + HNO3 -> NaNO3 + H2O

Na[+] + OH[-] + H[+] + NO3[-] -> Na[+] + NO3[-] + H2O

OH[-] + H[+] -> H2O

3. 3NaOH + H3PO4 -> Na3PO4 + 3H2O

3Na[+] + 3OH[-] + 3H[+] + PO4[3-] -> 3Na[+] + PO4[3-] + 3H2O

3OH[-] + 3H[+] -> 3H2O

 

b)

1.Ca(OH)2 + 2HCl -> CaCl2 + 2H2O

Ca[2+] + 2OH[-] + 2H[+] + 2Cl[-] -> Ca[2+] + 2Cl[-] + 2H2O

2OH[-] + 2H[+] -> 2H2O

2. Ca(OH)2 + H2SO4 -> CaSO4 + 2H2O

Ca[2+] + 2OH[-] + 2H[+] + SO4[2-] -> Ca[2+] + SO4[2-] + 2H2O

2OH[-] + 2H[+] -> 2H2O

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

Ca[2+] + 2OH[-] + 2H[+] + 2NO3[-] -> Ca[2+] + 2NO3[-] + 2H2O

2OH[-] + 2H[+] -> 2H2O

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