Homework Answers
In any cell, oxidation occurs at anode and reduction occurs at cathode
So, oxidation in an electrochemical cell takes place at The anode
Answer: C) the anode
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14) Identify the location of oxidation in an electrochemical cll 14 A) The U-tubes B) The...
1. Fill in the blanks. Identify Half-Reactions Identify Reaction in Half Reaction (Oxidation or Reduction) Cathode...
1. Fill in the blanks. Identify Half-Reactions Identify Reaction in Half Reaction (Oxidation or Reduction) Cathode or Anode Cr2O72- + 14 H+ + 66 - 2 Cr + 7 H20 I Reduction Cathode [ Fet – Fet the xle Oxidation | Anode Give the balanced, overall redox equation between these half-reactions. 6fe tcr. O, 2- +14 tt lefest & zerst +7H.O
25. The purpose of the salt bridge in an electrochemical cell is to A) maintain electrical...
25. The purpose of the salt bridge in an electrochemical cell is to A) maintain electrical neutrality in the half-cells via migration of ions. B) provide a source of ions to react at the anode and cathode. C) provide oxygen to facilitate oxidation at the anode. D) provide a means for electrons to travel from the anode to the cathode. E) provide a means for electrons to travel from the cathode to the anode.
An electrochemical cell uses Ni/Ni+2 and Cd/cd+2. a) Write the half reactions that will be spontaneous...
An electrochemical cell uses Ni/Ni+2 and Cd/cd+2. a) Write the half reactions that will be spontaneous for this cell. Oxidation- Reduction- b) Which metal is the anode and which is the cathode? anode cathode c) Calculate the emf (Ecell) for this cell. Eceu =
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A С E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: C to D D to C or Label the electrodes on the...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A C E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: E C to D D to C or Label the electrodes on...
Consider the following 3 statements regarding electrochemical (galvanic/voltaic) cells that are always true? I) Anions move...
Consider the following 3 statements regarding electrochemical (galvanic/voltaic) cells that are always true? I) Anions move to the anode ii) Electrons move to anode III) oxidation occurs at the cathode options: a) I only b) II only c) III only d) I and II e) I and III
During an electrochemical reaction, electrons move through the external circuit from the _______ and negative ions...
During an electrochemical reaction, electrons move through the external circuit from the _______ and negative ions in the cell move toward the _______ (be careful!). A. anode, anode B. anode, cathode C. cathode, anode D. cathode, cathode E. salt bridge, salt bridge
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation...
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation half Basic solution Identify the reduction half Identify the oxidation half Write a balanced equation for the electrode and overall cell reactions in the following galvanic cell and determine E°. Sketch the cell, labeling the anode and cathode and showing the direction of electron and ion flow. 2. 3. Circle the...
(1) About a hydrogen fuel cell, (a) The fuel is hydrogen. (b) There is an oxidation...
(1) About a hydrogen fuel cell, (a) The fuel is hydrogen. (b) There is an oxidation reaction on the surface of the anode. (c) The current flows from the anode to the cathode through the external circuit. (d) There is an oxidation on the surface of the cathode. (2) A fuel cell includes: (a) An anode and a cathode (b) A layer of electrolyte (c) Two resistors (d) one capacitor (3) About a bipolar plate, (a) It is used in...
Which of the following is FALSE regarding the process of rusting? Select one a. electrochemical cell...
Which of the following is FALSE regarding the process of rusting? Select one a. electrochemical cell results in which iron serves as both an anode and a cathode b. aqueous solution of ions serves as a "salt bridge" c. oxygen gas is the cathode d. an electrochemical cell results in which iron serves as the anode e. pitting or erosion of iron results Clear my choice
1. Fill in the blanks. Identify Half-Reactions Identify Reaction in Half Reaction (Oxidation or Reduction) Cathode or Anode Cr2O72- + 14 H+ + 66 - 2 Cr + 7 H20 I Reduction Cathode [ Fet – Fet the xle Oxidation | Anode Give the balanced, overall redox equation between these half-reactions. 6fe tcr. O, 2- +14 tt lefest & zerst +7H.O
25. The purpose of the salt bridge in an electrochemical cell is to A) maintain electrical neutrality in the half-cells via migration of ions. B) provide a source of ions to react at the anode and cathode. C) provide oxygen to facilitate oxidation at the anode. D) provide a means for electrons to travel from the anode to the cathode. E) provide a means for electrons to travel from the cathode to the anode.
An electrochemical cell uses Ni/Ni+2 and Cd/cd+2. a) Write the half reactions that will be spontaneous for this cell. Oxidation- Reduction- b) Which metal is the anode and which is the cathode? anode cathode c) Calculate the emf (Ecell) for this cell. Eceu =
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A С E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: C to D D to C or Label the electrodes on the...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A C E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: E C to D D to C or Label the electrodes on...
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation half Basic solution Identify the reduction half Identify the oxidation half Write a balanced equation for the electrode and overall cell reactions in the following galvanic cell and determine E°. Sketch the cell, labeling the anode and cathode and showing the direction of electron and ion flow. 2. 3. Circle the...
Which of the following is FALSE regarding the process of rusting? Select one a. electrochemical cell results in which iron serves as both an anode and a cathode b. aqueous solution of ions serves as a "salt bridge" c. oxygen gas is the cathode d. an electrochemical cell results in which iron serves as the anode e. pitting or erosion of iron results Clear my choice
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