Oxidation and reduction

Presentation

•

Chemistry

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-2, HS-LS1-7, HS-PS1-7

Standards-aligned

Fauzia Afzal

Used 128+ times

FREE Resource

2 Slides • 14 Questions

Redox Reactions

Oxidation,Reduction, Oxidizing and reducing agents

Multiple Choice

What substance is oxidized in the following reaction?
4Fe + 3O₂ --> 2Fe₂O₃

Iron

Fluorine

Oxygen

Multiple Choice

In the reaction Zn + H₂O --> ZnO₂ + H₂
which element, if any, is oxidized?

Zinc

Hydrogen

Oxygen

None

Multiple Choice

Substance that oxidizes another substance by accepting its electrons.

reducing agent

oxidation number

combustion

oxidizing agent

Multiple Choice

In the reaction
2Ca(s) + O₂(g) --> 2CaO(s), calcium is __________

Reduced

Synthesized

Oxidized

None of the above

Multiple Choice

If an atom loses electrons during a chemical reaction, the atom was:

Oxidized

Reduced

Neutralized

Precipitated

Multiple Choice

In a reaction, copper is reduced; its number of electrons has:

Increased

Decreased

Remained Constant

Varies Randomly

Multiple Choice

In a redox reaction, the species reduced

gains electrons and is the oxidizing agent

loses electrons and is the oxidizing agent

loses electrons and is the reducing agent

gains electrons and is the reducing agent

Multiple Choice

Gaining oxygen is an example of...

oxidation

reduction

Multiple Choice

Gaining hydrogen is an example of...

oxidation

reduction

Multiple Choice

Reduction is the ___________ of electrons.

loss

gain

sharing

transfer

Multiple Choice

Oxidation is the _________ of electrons.

loss

gain

sharing

transfer

Multiple Choice

Another name for a "oxidation-reduction" reaction is

chemical reaction

neutralization reaction

redox reaction

nuclear reaction

Multiple Choice

Reduction is the ___________ of electrons.

loss

gain

transfer

Open Ended

Write the muddiest (most difficult or confusing) point of the lesson.

Type response here

Monday, 30th November 2020 9M

Topic: Electrochemistry

Learning outcome: Define oxidation, reduction and Explain oxidizing and reducing agents (Revision)

Recap: Oxidation and reduction in general

Main lesson : Revision through class discussion and exposition. MS board, drowboard.

Feedback : Multiple choice questions (Quizizz)

Task assigned: Watch the interactive video,attempt the questions and reinforce the topic for upcoming assessment.

Wrap up: Writing the muddiest point of the lesson (quizizz)

Redox Reactions

Oxidation,Reduction, Oxidizing and reducing agents

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