
Oxidation Numbers in Al2S3

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Lucas Foster
FREE Resource
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the overall charge of a neutral compound like Al2S3?
Depends on the elements
Zero
Negative
Positive
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do we determine the oxidation number of sulfur in Al2S3?
By its position in the periodic table
By its ionic charge as an ion
By the number of sulfur atoms
By the charge of aluminum
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of each sulfur atom in Al2S3?
+2
-2
+1
-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do we calculate the total oxidation number for sulfur in Al2S3?
Divide the oxidation number of sulfur by the number of aluminum atoms
Subtract the oxidation number of aluminum from sulfur
Multiply the oxidation number of sulfur by the number of sulfur atoms
Add the oxidation numbers of sulfur and aluminum
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What oxidation number must aluminum have to balance the compound Al2S3?
+3
+2
+4
+1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of each aluminum atom in Al2S3?
+4
+1
+2
+3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do the oxidation numbers in Al2S3 add up to zero?
Because it is a charged compound
Because aluminum has a lower oxidation number
Because it is a neutral compound
Because sulfur has a higher oxidation number
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