Oxidation States and Compounds

Oxidation States and Compounds

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explains how to determine the oxidation numbers for elements in two compounds: potassium dichromate (K2Cr2O7) and potassium permanganate (KMnO4). It begins by introducing the concept of oxidation numbers and their significance in neutral compounds. The tutorial then provides a step-by-step calculation of oxidation numbers for each element in K2Cr2O7, followed by a similar analysis for KMnO4. The video concludes with a summary of the findings, emphasizing the importance of understanding oxidation numbers in chemical compounds.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the compounds discussed in the video?

Potassium dichromate and sodium chloride

Sodium chloride and potassium permanganate

Potassium dichromate and potassium permanganate

Sodium dichromate and potassium permanganate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation state of potassium in K2Cr2O7?

0

+1

-1

+2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the typical oxidation state of oxygen in compounds?

-1

-2

+2

+1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you represent the unknown oxidation state of chromium in the equation?

As w

As x

As z

As y

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation number of chromium in K2Cr2O7?

+3

+6

+4

+2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation state of potassium in KMnO4?

-1

0

+2

+1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the oxidation state of oxygen in KMnO4?

+2

+1

-2

-1

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