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pers. reaksi : Ca(OH)2 (aq) + 2HCl (aq) -> CaCl2 (aq) + 2H2O (l)
pers. reaksi ion lengkap : Ca2+(aq) + 2OH-(aq) + 2H+(aq) + 2Cl-(aq) -> Ca2+(aq) + 2Cl-(aq) + 2H2O(l)
pers. reaksi ion bersih : 2OH-(aq) + 2H+(aq) + 2Cl-(aq) -> 2Cl-(aq) + 2H2O(l)
2. amonia dan asam klorida
pers. reaksi : NH3 (g) + H2O (l) -> NH4OH (aq)
NH4OH (aq) + HCl (aq) -> NH4Cl + H2O (l)
pers. reaksi ion lengkap : NH4+(aq) + OH-(aq) + H+(aq) + Cl-(aq) -> NH4+(aq) + Cl-(aq) + H2O(l)
pers. reaksi ion bersih : OH-(aq) + H+(aq) -> H2O(l)
3. tembaga (II) oksida padat dan asam klorida
pers. reaksi : CuO(s) + 2HCl(aq) -> CuCl2(aq) + H2O(l)
pers. reaksi ion lengkap : CuO(s) + 2H+(aq) + 2Cl-(aq) -> Cu2+(aq) + 2Cl-(aq) + H2O(l)
pers. reaksi ion bersih : CuO(s) + 2H+(aq) -> Cu2+(aq) + H2O(l)
4. disfosforus pentaoksida padat dan larutan kalium hidroksida
pers. reaksi : P2O5(s) + 6KOH(aq) -> 2K3PO4(aq) + 3H2O(l)
pers. reaksi ion lengkap : P2O5(s) + 6K+(aq) + 6OH-(aq) -> 6K+(aq) + PO4 3-(aq) + 3H2O(l)
pers. reaksi ion bersih : P2O5(s) + 6OH-(aq) -> 2PO4 3-(aq) + 3H2O(l)
5. larutan kalsium sulfat dan larutan natrium karbonat
pers. reaksi : CaSO4(aq) + Na2CO3(aq) -> CaCO3(s) + Na2SO4(aq)
pers. reaksi ion lengkap : Ca2+(aq) + SO4 2-(aq) + 2Na+(aq) + CO3 2-(aq) -> CaCO3(s) + 2Na+(aq) + SO4 2-(aq)
pers. reaksi ion bersih : Ca2+(aq) + CO3 2-(aq) -> CaCO3(s)
6. larutan magnesium klorida dan larutan natrium hidroksida
pers. reaksi : MgCl2(aq) + 2NaOH(aq) -> MgOH2(aq) + 2NaCl(s)
pers. reaksi ion lengkap : Mg2+(aq) + 2Cl-(aq) + 2Na+(aq) + 2OH-(aq) -> Mg2+(aq) + 2OH-(aq) + 2NaCl(s)
pers. reaksi ion bersih : 2Cl-(aq) + 2Na+(aq) -> 2NaCl(s)
7. aluminium dan larutan asam sulfat
pers. reaksi : 2Al(s) + 3H2SO4(aq) -> Al2(SO4)3(aq) + 3H2(g)
pers. reaksi ion lengkap : 2Al(s) + 6H+(aq) + 3SO4 2-(aq) -> 2Al+(aq) + 3SO4 2-(aq) + 3H2(g)
pers. reaksi ion bersih : 2Al(s) + 6H+(aq) -> 2Al+(aq) + 3H2(g)
8. magnesium dan tembaga (II) sulfat
pers. reaksi : Mg(s) + CuSO4(aq) -> MgSO4(aq) + Cu(s)
pers. reaksi ion lengkap : Mg(s) + Cu2+(aq) + SO4 2-(aq) -> Mg2+(aq) + SO4 2-(aq) + Cu(s)
pers. reaksi ion bersih : Mg(s) + Cu2+(aq) -> Mg2+(aq) + Cu(s)