Oxidation Numbers in Acetaldehyde

Oxidation Numbers in Acetaldehyde

Assessment

Interactive Video

Chemistry

10th - 12th Grade

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explains how to determine oxidation numbers for acetaldehyde (CH3CHO). It covers two methods: calculating average oxidation numbers for the carbons and determining specific oxidation numbers for each carbon atom. The tutorial provides step-by-step calculations and explains the reasoning behind each step, ensuring the total oxidation numbers add up to zero. The video concludes with a summary of the oxidation numbers for acetaldehyde.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for acetaldehyde?

CH4

C2H5OH

CH3CHO

C2H6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element in acetaldehyde is almost always assigned an oxidation number of -2?

Carbon

Hydrogen

Oxygen

Nitrogen

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the average oxidation number for the carbons in acetaldehyde?

-1

+1

0

+2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do the carbons in acetaldehyde have different oxidation numbers?

They have different atomic masses.

They are bonded to different elements.

They have different isotopes.

They are in different phases.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation number of the carbon bonded to the oxygen in acetaldehyde?

-3

+3

-1

+1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation number of the carbon bonded to three hydrogens in acetaldehyde?

+1

-3

-1

+3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the sum of the oxidation numbers for the carbons in acetaldehyde?

Add +1 and +1

Add +3 and -1

Add -1 and -1

Add -3 and +1

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