Al2(SO4)3 + 6H2O---->2Al(OH)3 + 3H2SO4
2Al(3+) + 3SO4(2-) + 6H2O---->2Al(OH)3 + 6H(+) + 3SO4(2-)
2Al(3+) + 6H2O---->2Al(OH)3 + 6H(+)......odczyn kwasowy
(NH4)2....Niekompletny wzór !
Na2S + 2H2O---->2NaOH + H2S
2Na(+) + S(2-) + 2H2O---->2Na(+) + 2OH(-) + H2S
S(2-) + 2H2O---->2OH(-) + H2S......odczyn zasadowy
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Al2(SO4)3 + 6H2O---->2Al(OH)3 + 3H2SO4
2Al(3+) + 3SO4(2-) + 6H2O---->2Al(OH)3 + 6H(+) + 3SO4(2-)
2Al(3+) + 6H2O---->2Al(OH)3 + 6H(+)......odczyn kwasowy
(NH4)2....Niekompletny wzór !
Na2S + 2H2O---->2NaOH + H2S
2Na(+) + S(2-) + 2H2O---->2Na(+) + 2OH(-) + H2S
S(2-) + 2H2O---->2OH(-) + H2S......odczyn zasadowy