a) 4СО² + 8NaOH => 4Na²CO³ + 4H²O
б) 4K + 4H²O => 4KOH + 2H²
в) 2Fe(2OH)³ => Fe²O³ + 3H²O
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a) 4СО² + 8NaOH => 4Na²CO³ + 4H²O
б) 4K + 4H²O => 4KOH + 2H²
в) 2Fe(2OH)³ => Fe²O³ + 3H²O