Electrochemistry Concepts and Applications

Electrochemistry Concepts and Applications

Assessment

Interactive Video

Chemistry, Science, Physics

9th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains redux reactions, focusing on electron transfer in oxidation and reduction processes. It introduces electrochemical cells, distinguishing between voltaic and electrolytic cells. Voltaic cells generate electrical current through spontaneous redux reactions, while electrolytic cells use external power to drive non-spontaneous reactions. The tutorial covers the components and functions of these cells, including electrodes, electrolytes, and the salt bridge. It also discusses applications like primary and secondary cells, emphasizing the importance of understanding these concepts for energy storage and industrial processes.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What occurs during a Redux reaction?

Transfer of protons between substances

Transfer of electrons between substances

Exchange of photons between substances

Exchange of neutrons between substances

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a voltaic cell, where does oxidation occur?

In the electrolyte solution

In the salt bridge

At the anode

At the cathode

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the salt bridge in a voltaic cell?

To generate electrical current

To increase the cell potential

To prevent the mixing of different solutions

To balance the charge by allowing ion flow

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the cell potential of a voltaic cell over time?

It decreases

It increases

It remains constant

It fluctuates randomly

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of cell can be recharged by reversing the Redux reaction?

Secondary cell

Primary cell

Electrolytic cell

Voltaic cell

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an electrolytic cell, what is the role of the cathode?

Site of oxidation

Site of reduction

Source of electrical energy

Site of electron loss

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is electrolysis?

The decomposition of a substance using electrical current

The process of generating electrical current

The spontaneous reaction in a voltaic cell

The mixing of electrolytes in a cell

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