What element is an oxidizing agent when a metal interacts with dilute sulfuric acid with concentrated
| April 9, 2021 | education
What element is an oxidizing agent when a metal interacts with dilute sulfuric acid with concentrated sulfuric acid? give the reaction equations corresponding to the abbreviated ionic equations
When the metal interacts with dilute sulfuric acid, H + acts as an oxidizing agent; when the metal interacts with concentrated sulfuric acid – S + 6.
1) Cu2+ + S2– => CuS ↓;
CuSO4 + Na2S => Na2SO4 + CuS ↓;
2) FeS + 2H+ => Fe2+ + H2S ↑;
FeS + 2HCl => FeCl2 + H2S ↑;
3) SO2 + 2OH– => SO32– + H2O;
SO2 + 2NaOH => Na2SO3 + H2O;
4) Pb2+ + SO42– => PbSO4 ↓;
Pb(NO3)2 + H2SO4 => 2HNO3 + PbSO4 ↓.
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