Question

Составьте молекулярные и ионные уравнения CuCl2+H2S= Ba(OH)2+CuSO4=

Answer 1

=CuS+2HCl
=Cu(OH)2+BaSO4

Answer 2

Molécular equation:

CuCl2 + H2S -> Ba(OH)2 + CuSO4

Ionic equation:

Cu2+(aq) + 2Cl-(aq) + 2H+(aq) + S2-(aq) -> Ba2+(aq) + 2OH-(aq) + Cu2+(aq) + SO42-(aq)

Please note that in this equation, the copper ion (Cu2+) appears on both sides of the equation. This indicates that copper is a spectator ion and does not participate in the overall reaction. The net ionic equation, which excludes the spectator ions, would be:

2H+(aq) + S2-(aq) -> 2OH-(aq) + SO42-(aq)