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2Au+(aq) + Cu(s) → 2Au(s) + Cu2+(aq)
That formula is correct. It represents the net ionic equation of a complex oxidation-reduction reaction. Note that mass (2Au, 1Cu) and charge (2+) are preserved on both sides. The copper is oxidized from 0 to 2+, whereas the gold is reduced from 1+ to 0. This makes copper the reducing agent and gold the oxidizing agent.
In layman's terms, when you put solid copper into a solution with gold in it, the gold will precipitate out. The reason the reaction happens at all is because gold is so resistant to being oxidized. Essentially any metal, including copper, will force gold out of solution.
That equation, as stated above, is a net ionic equation and is the simplified form of a larger equation, such as:
Molecular: 2AuNO3(aq) + Cu(s) → Cu(NO3)2(aq) + 2Au(s)
Ionic: 2Au+(aq) + 2NO3-(aq) + Cu(s) → Cu2+(aq) + 2NO3-(aq) + 2Au(s)
Note that the nitrate ions are the same on both sides and do not participate in the overall reaction, hence their removal to form the net ionic equation.
What else can I help you with?
What is the molecular equation of CuNO32and NaS2?
For the molecular balance of the equation it would be: CuSO4 (aq) + Na2S (aq) = CuS (s) + Na2SO4 (aq). For the net ionic balance of the equation it would be: Cu2+ (aq) + S2(aq) = CuS (s).
What is the balanced symbol equation for copper sulphate and Magnesium?
Half equations ?? The chemical formula of magnesium oxide is MgO.
What is the chemical reaction between Cu(No3)2 plus Na2SO4?
Cu(NO3) (aq) + Na2SO4 (aq) ==> CuSO4 (aq) + 2NaNO3 (aq)Since all species are soluble (aq), there will be NO REACTION.
What is the voltage of the cell shown?
Cu(s) | Cu2+(aq) K+(aq) | K(s)-3.27Zn(s) | Zn2+(aq) Na+(aq) | Na(s)-1.95
What is the balanced symbol equation for zinc plus copper II sulphate -- zinc sulphate plus copper II?
copper (II) sulfate is CuSO4 ; Zinc sulfate is ZnSO4 Zn + CuSO4 --> ZnSO4 + Cu
What is the correct cell notation for the reaction 2Au plus aq plus Cus 2Ausplus Cu2 plus aq?
Cu(s) | Cu2+(aq) Au+(aq) | Au(s)
What is the equation for zinc nitrate and cupric nitrate?
Zn(s) + Cu(NO3)2(aq) => Zn(NO3)2(aq) + Cu(s) Zn(s) + Cu2+(aq) + 2NO3-(aq) => Zn2+(aq) + 2NO3-(aq) + Cu(s) NET: Zn(s) + Cu2+(aq) => Zn2+(aq) + Cu(s
If silver and copper are used to make a cell what half-reactions will occur for ag plus aq plus e- ag s e0 equals 0.80 v and for cu2 plus aq plus 2e- cu aq e0 equals 0.34 V?
In the cell, the half-reaction for silver will be Ag+ (aq) + e- -> Ag (s) with a standard reduction potential of +0.80 V. The half-reaction for copper will be Cu2+ (aq) + 2e- -> Cu (s) with a standard reduction potential of +0.34 V. The silver half-reaction will occur at the cathode, while the copper half-reaction will occur at the anode in the cell.
What is the ionic equation for copper II nitrate solution?
The ionic equation for copper(II) nitrate solution (Cu(NO3)2) is: Cu2+(aq) + 2NO3-(aq) -> Cu(NO3)2(aq)
What is the voltage of the electrochemical cell written as Cu's Cu2 aq Mg2 aq Mg's?
-2.71v
What is the Molecular equation Full ionic equation and Net Ionic equation for when a solution of copper ii nitrate is combined with a solution of lithium hydroxide?
Balanced Molecular EquationCu(NO3)2(aq) + 2LiOH(aq) ---> 2LiNO3(aq) + Cu(OH)2(s)Full (Complete) Ionic Equation (All of the ions in the reaction are shown.)Cu2+(aq) + 2NO3-(aq) --> + 2Li+(aq) + 2NO3-(aq) + Cu(OH)2(s)Net Ionic Equation (Only the ions that reacted and the precipitate that formed are shown.)Cu2+(aq) + 2OH-(aq) --> Cu(OH)2(s)
What is the voltage of the electrochemical cell written as Cu(s) Cu2 (aq) Mg2 (aq) Mg (s)?
-2.71v
Write the ions present in solution of Cu C2H3O2 2 and identify all of the phases in your answers?
In solution, CuC2H3O2 would dissociate into Cu2+ and C2H3O2- ions. The phases involved would be solid CuC2H3O2 dissociating into aqueous Cu2+ and C2H3O2- ions.
What is the voltage of the electrochemical cell written as Cu(s) Cu2 (aq) Mg2 (aq) Mg(s)?
-2.71v
What is the molecular complete ionic and net ionic equation for steel wool iron reacting with copper ii sulfate?
molecular equation: CuSO4 (aq)+Fe (s) --> Cu(s) + FeSO4(aq) net ionic equation: Cu2+(aq) + Fe2+ (s) --> Cu2+(s) + Fe2+(aq) spectator ion: Sulfate Ion (SO42-)
Which is a possible electrochemical cell?
Cr(s) Cr3+(aq) Ag+(aq) Ag(s) Cu(s) Cu2+(aq) Sn4+(aq), Sn2+(aq) Pt(s)
If iron and copper are used to make a cell what halfreactions will occur?
Cu2+(aq) + 2e- → Cu(s) and Fe(s) → Fe2+(aq) + 2e-
