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Надо составить уравнения реакций с участием щелочи: Ca(OH)[tex]_{2}[/tex]


P[tex]_{2}[/tex]O[tex]_{5}[/tex]+_____=_____+_____

FeCl[tex]_{2}[/tex]+_____=_____+_____

FeCl[tex]_{3}[/tex]+_____=_____+_____
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