Data Sheet: Reaction of metals with acids Observation: I Question | Are the results cunsistent with Table of I standard potentials of metals or with I the activity series of metals? Discuss the inactivity of Cu in HCI (aq). Reduction half-reaction: Oxidation half-reaction: Mg (s) + HCI (aq) Over-all reaction: Observation: Reduction half-reaction: 2H+(aq)+2e- ---- H2(g) Fe (s) + HCI (aq) Oxidation half-reaction: Fe(s) ---- Fe2+(aq)+2e- Over-all reaction: Fe(s) +2H+(aq)-- Fe2+(aq) + H2(g) Observation: Reduction half-reaction: 2H+(aq) + 2e- -----H2(g) Zn (s) + HCI (aq) Oxidation half-reaction: Zn(s) -----Zn2+(aq)+2e- Over-all reaction: Zn(s)+2H+(aq) --- Zn2+(aq) + H2(g) Cu (s) + HCI (aq) Observation: When solid copper metal is mixed with aqueous Hydrochloric acid solution, then there is no Reaction take place. It is due to less activity of copper metal as compared to Hydrogen. Observation:Evolution of gas with pop sound. Al (s) + HCI (aq) Reduction half-reaction: 2H+ + 2e- -----H2 Oxidation half-reaction: Al ------ A13+ +3e- Over-all reaction: 2AI + 6HCI ----- 2AICI3 + 3H2

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Data Sheet: Reaction of metals with acids
Observation:
I Question
| Are the results cunsistent with Table of I
standard potentials of metals or with I
the activity series of metals? Discuss
the inactivity of Cu in HCI (aq).
Reduction half-reaction:
Oxidation half-reaction:
Mg (s) + HCI (aq)
Over-all reaction:
Observation:
Reduction half-reaction: 2H+(aq)+2e- ---- H2(g)
Fe (s) + HCI (aq)
Oxidation half-reaction: Fe(s) ---- Fe2+(aq)+2e-
Over-all reaction: Fe(s) +2H+(aq)---- Fe2+(aq) + H2(g)
Observation:
Reduction half-reaction: 2H+(aq) + 2e- -----H2(g)
Zn (s) + HCI (aq)
Oxidation half-reaction: Zn(s) -----Zn2+(aq)+2e-
Over-all reaction: Zn(s)+2H+(aq)
Zn2+(aq) + H2(g)
------
Cu (s) + HCI (aq)
Observation: When solid copper metal is mixed with aqueous
Hydrochloric acid solution, then there is no Reaction take place. It is
due to less activity of copper metal as compared to Hydrogen.
Observation:Evolution of gas with pop sound.
Al (s) + HCI (aq)
Reduction half-reaction: 2H+ + 2e- ------H2
Oxidation half-reaction: Al
------ A13+ +3e-
Over-all reaction: 2AI + 6HCI -- 2AIC13 + 3H2
Transcribed Image Text:Data Sheet: Reaction of metals with acids Observation: I Question | Are the results cunsistent with Table of I standard potentials of metals or with I the activity series of metals? Discuss the inactivity of Cu in HCI (aq). Reduction half-reaction: Oxidation half-reaction: Mg (s) + HCI (aq) Over-all reaction: Observation: Reduction half-reaction: 2H+(aq)+2e- ---- H2(g) Fe (s) + HCI (aq) Oxidation half-reaction: Fe(s) ---- Fe2+(aq)+2e- Over-all reaction: Fe(s) +2H+(aq)---- Fe2+(aq) + H2(g) Observation: Reduction half-reaction: 2H+(aq) + 2e- -----H2(g) Zn (s) + HCI (aq) Oxidation half-reaction: Zn(s) -----Zn2+(aq)+2e- Over-all reaction: Zn(s)+2H+(aq) Zn2+(aq) + H2(g) ------ Cu (s) + HCI (aq) Observation: When solid copper metal is mixed with aqueous Hydrochloric acid solution, then there is no Reaction take place. It is due to less activity of copper metal as compared to Hydrogen. Observation:Evolution of gas with pop sound. Al (s) + HCI (aq) Reduction half-reaction: 2H+ + 2e- ------H2 Oxidation half-reaction: Al ------ A13+ +3e- Over-all reaction: 2AI + 6HCI -- 2AIC13 + 3H2
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