The diagram shows a zn mno2 koh alkaline dry cell

Name:

Date:

Graded Assignment

Unit Test, Part 2

Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for full credit.

(8 points)

Score

1. The diagram shows an electrochemical cell with copper (left) and zinc (right) strips.

image1.jpg

In your response, do the following:

· Label all parts (1–9), including the solutions in each beaker and the connecting tube.

· Label which cell is the cathode and which cell is the anode. Include the charge on each strip.

· Show, or describe in detail, the flow of electrons.

· Describe what type of electrochemical cell is pictured. Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.

Answer:

(8 points)

Score

2. The diagram shows a Zn/MnO2-KOH alkaline dry cell.

image2.jpg

In your response, do the following:

· Label all parts.

· Label the cathode and the anode, including the charges on each.

· Show the flow of electrons.

· Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.

Answer:

(8 points)

Score

3. Compare and contrast a dry cell with a voltaic cell by filling in the table.

Answer:

Dry Cells

Voltaic Cells or Wet Cells

Half-Cells

Anode

Cathode

Electrolytes

Oxidation Reaction

Reduction Reaction

Bridge

Relative Size

(8 points)

Score

4. The diagram shows an electrochemical cell with a gold strip (left) and aluminum glasses (right).

image3.jpg

In your response, do the following:

· Label all parts.

· Label the cathode and the anode, including the charge on each.

· Show the flow of electrons.

· Describe what type of electrochemical cell is pictured and what its use is.

· Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.

Answer:

Your Score

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