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Electrochemistry

Authored by Mrs. Yonkler

Chemistry

10th Grade

NGSS covered

Used 6+ times

Electrochemistry
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12 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Voltaic cells convert

mechanical energy in to electrical energy

potential energy in to electrical energy

electrical energy in to chemical energy

chemical energy in to electrical energy

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Electrons always flow from

cathode to anode

anode to cathode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oxidation occurs at the

anode

cathode

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following is the balanced half -reaction for the oxidation of Cu to Cu+2?

Cu   --> Cu+2
Cu + 2 e-   --> Cu+2
Cu  --> Cu+2  + 2 e-
Cu - 2e-  --> Cu+2

Tags

NGSS.HS-PS1-2

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Reactions in voltaic cells are

spontaneous, redox reactions
non-spontaneous, redox reactions
spontaneous, non-redox reactions
non-spontaneous, non-redox reactions

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement best describes how a salt bridge maintains electrical neutrality in the half-cells of an electrochemical cell?

It prevents the migration of electrons.

It prevents the reaction from occurring spontaneously.

It permits the migration of ions.

It allows for the reaction from occurring spontaneously.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The electrode at which reduction occurs

cathode
anode
salt bridge
electrode

Tags

NGSS.HS-PS2-5

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