
Oxidation Numbers in Compounds
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Amelia Wright
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of the video tutorial?
Understanding chemical bonding
Learning about periodic table trends
Finding oxidation numbers in POCl3
Balancing chemical equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical oxidation number assigned to oxygen in compounds?
+1
-2
-1
+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which group in the periodic table does chlorine belong to?
Group 18
Group 2
Group 17
Group 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of chlorine in POCl3?
+1
-1
+2
-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What rule is used to determine the oxidation number of phosphorus in POCl3?
The sum of oxidation numbers in a neutral compound is zero
Phosphorus always has an oxidation number of +3
The sum of oxidation numbers in a compound is equal to the charge of the compound
Phosphorus always has an oxidation number of -3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of phosphorus in POCl3?
+5
+3
-3
-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do the oxidation numbers of all elements in a neutral compound relate to each other?
They add up to the molecular weight of the compound
They add up to the number of atoms in the compound
They add up to zero
They add up to the atomic number of the central atom
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the final step in determining the unknown oxidation number in POCl3?
Using a calculator
Using the periodic table
Applying the rule that the sum of oxidation numbers equals zero
Guessing based on common oxidation states
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the oxidation numbers adding up to zero in a neutral compound?
It shows the compound is reactive
It means the compound is ionic
It confirms the compound is neutral
It indicates the compound is stable
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