ПОМОГИТЕ ПОЖАЛУЙСТА
Запиши диссоциацию веществ.
Ca(OH)2; H2SO3; K2SO4; Ca(NO2)2; Na2S; H2SiO3; K2SiO3.
Fe(OH)3
Fe(OH)2
[tex]\left \{ {Fe(OH)2} \atop {Fe(OH)3}} \right.[/tex]
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