What is the oxidation number of iron in Fe2(CO3)3?

Oxidation Numbers and Carbonate Ions

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

Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
+2
+3
+6
+4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must the oxidation numbers in a neutral compound add up to zero?
To balance the charges within the compound
To ensure the compound is stable
Because it is a rule for all compounds
To make the compound reactive
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the carbonate ion (CO3)?
-1
+2
-2
-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do oxidation numbers relate to the charge of an ion?
They are always positive
They add up to the charge of the ion
They are always equal
They are always negative
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total oxidation number for three carbonate ions in Fe2(CO3)3?
-2
-8
-4
-6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be the total positive oxidation number to balance the negative charge of the carbonate ions?
+2
+6
+4
+3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the algebraic method, what does 'x' represent?
The total charge of the compound
The number of iron atoms
The charge of the carbonate ion
The oxidation number of iron
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