Предмет: Химия, автор: Vi4kaYezhevichka

С какими из перечисленных ниже веществ будет реагировать сульфат меди (II): а) серой, б) оловом, в) серебром, г) гидроксидом бария,д) оксидом железа (III), е) хлоридом бария? Составьте уравнения реакций. С какими веществами не будет реагировать? объясните почему?

Ответы

Автор ответа: Znaykanalyne

Ответ:

а)C серой не будет реагировать, потому что сера (S) - это неметалл, а соли не реагируют с неметаллами.

б)С оловом будет реагировать, потому что олово (Sn) в ряду напряжений металлов находится левее меди (Cu).

Sn+2CuSO4=Sn(SO4)2+2Cu

в)С серебром не будет реагировать, потому что серебро (Ag) в ряду напряжений металлов находится правее меди (Cu).

г)С гидроксидом бария - будет, потому что образуется нерастворимое основание (смотрим в таблице растворимостей кислот, оснований и солей в воде) - Cu(OH)2. Соли реагируют с щелочами при условии образования нерастворимого основания.

CuSO4+Ba(OH)2=BaSO4+Cu(OH)2↓

д)С оксидом железа (ІІІ) - не будет, потому что соли не реагируют с оксидами.

е)С хлоридом бария - будет, потому что это соль, и образуется осадок - BaSO4. Соль реагирует с солью при условии образования осадка.

BaCl2+CuSO4=CuCl2+BaSO4↓

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