Galvanic (Voltaic) Cells (Leaving Cert Chemistry): Quizzes

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Galvanic (Voltaic) Cells
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What type of energy conversion occurs in a galvanic cell?

Chemical to electrical energy

What is the alternative name for a galvanic cell?

Voltaic cell

Which process occurs at the anode in a galvanic cell?

Oxidation

Which process occurs at the cathode in a galvanic cell?

Reduction

What is the charge of the anode in a galvanic cell?

Negative

What is the charge of the cathode in a galvanic cell?

Positive

What is a key function of the salt bridge?

Maintains electrical neutrality

In which direction do electrons flow in a galvanic cell?

From anode to cathode

What is the half-equation at the zinc anode?

Zn→Zn2++2e−\text{Zn} \rightarrow \text{Zn}^{2+} + 2e^-

What is the half-equation at the copper cathode?

Cu2++2e−→Cu\text{Cu}^{2+} + 2e^- \rightarrow \text{Cu}

What voltage does a zinc-copper galvanic cell produce?

Approximately 1.1 volts

What could the salt bridge be made from?

Filter paper soaked in KCl solution

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