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Answer to Question #56277 in General Chemistry for tracy guido

Question #56277
Balanced equations for the following does reaction occur thank you

Fe + HCl

Cu + HCl

Zn + HCl

Fe + HNO3

Cu + HNO3

Zn + HNO3
Expert's answer
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g) – reaction occurs
Cu(s) + 2HCl(g) → CuCl2(s) + H2(g) – reaction occurs at 600 Celcius
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) – reaction occurs
5Fe(s) + 12HNO3(aq) → 5Fe(NO3)2(aq) + N2(g) + 6H2O(l) – reaction occurs, if acid is dilute
Fe(s) + 2HNO3(aq) ≠ – reaction doesn’t occur, if concentrated acid
3Cu(s) + 8HNO3(aq) → 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l) – if dilute acid
Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l) – if concentrated acid
4Zn(s) + 10HNO3(aq) → 4Zn(NO3)2(aq) + NH4NO3(g) + 3H2O(l) – if very dilute acid
Zn(s) + 4HNO3(aq) → Zn(NO3)2(aq) + 2NO2(g) + 2H2O(l) – if concentrated acid

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