Redox Reactions

Presentation

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Chemistry

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10th - 12th Grade

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Practice Problem

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Medium

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NGSS

HS-PS1-2, HS-PS1-1

Standards-aligned

Amy Roediger

Used 66+ times

FREE Resource

6 Slides • 6 Questions

Redox Reactions

You will need pages 14 & 15 from your course notes.

Redox Reactions

An oxidation-reduction reaction (or REDOX reaction) is one in which the oxidation numbers for two elements change on the left and right side of the equation

How do we assign oxidation numbers?

Assigning Oxidation Numbers

Go to https://youtu.be/yNjHFaA8a5k to learn more about assigning oxidation numbers.

Multiple Choice

What is oxidation number of Fe in FeO ?

-2

Multiple Choice

What is oxidation number of Cr in Cr₂O_7^2-?

-2

+12

Multiple Choice

What is the oxidation number of N in NO_2^-1?

-3

-2

How can you tell if a reaction is a redox reaction?

An oxidation-reduction reaction (or REDOX reaction) is one in which the oxidation numbers for two elements change on the left and right side of the equation.

For the reactions that are redox, identify what is being oxidized (reducing agent) and reduced (oxidizing agent).

Redox Reactions?

Go to https://youtu.be/w-PkUGYyESE to learn more about determining whether a reaction is a redox reaction.

Multiple Choice

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

Reduced

Synthesized

Oxidized

None of the above

Multiple Choice

What element is being reduced?

I₂ + H₂SO₃ + H₂O --> 2 HI + H₂SO₄

Multiple Choice

Which reaction is NOT a redox reaction?

Fe + S --> FeS

NaOH + HCl --> NaCl + HOH

MgSe --> Mg + Se

Zn + CuCl₂ --> Cu + ZnCl₂

Redox Reactions

You will need pages 14 & 15 from your course notes.

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