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Electrochemical Cells

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

What is an electrolyte?

a)

The liquid part of the electrochemical cell

b)

The metal part of the electrochemical cell

c)

The part that measures the voltage in an electrochemical cell

2.

What is a voltmeter?

a)

The liquid part of the electrochemical cell

b)

The metal part of the electrochemical cell

c)

The part that measures the voltage in an electrochemical cell

3.

How do you complete the circuit when using 2 half-cells?

a)

acid bridge

b)

base bridge

c)

salt bridge

4.

If a half-cell does not involve metal atoms or ions, what can you use to complete the circuit?

a)

Carbon nanotube

b)

Carbon rod

c)

Diamonds

5.

Different pairs of metals produce different voltages.

a)

True

b)

False

6.

The circuit must be complete for the electrons to flow.

a)

True

b)

False

7.

The closer the elements in the Electrochemical Series, the greater the voltage produced.

a)

True

b)

False

8.

Electrons will flow from the element higher in the Electrochemical Series to the one lower in the Electrochemical Series.

a)

True

b)

False

9.

If you highlight the reactions taking place and the flow of electrons in the Electrochemical Series, the lines will form the letter...

a)

X

b)

Y

c)

Z

10.

In the Z rule, the top reaction goes backwards = _______ while the bottom reaction goes forward = ________

a)

oxidation, oxidation

b)

oxidation, reduction

c)

reduction, oxidation

d)

reduction, reduction

11.

Applications of electrochemical cells include...

a)

Rechargeable batteries in phones and laptops

b)

Hydrogen fuel cells in electric cars

c)

Energy storage systems in the Whitelee Windfarm

d)

Single-use batteries in TV remotes