What is the element symbol for iron in the formula for Iron III Dichromate?

Iron III Dichromate Concepts

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

Mia Campbell
FREE Resource
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
I
Ir
Fe
In
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of iron in Iron III Dichromate?
1+
2+
3+
4+
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the dichromate ion?
Cr2O7
CrO7
CrO4
Cr2O4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the dichromate ion?
1-
4-
2-
3-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do the charges in an ionic compound need to add up to zero?
To make the compound dissolve in water
To make the compound colorful
To make the compound stable
To make the compound magnetic
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using parentheses in the formula for Iron III Dichromate?
To indicate the number of dichromate ions
To indicate the color of the compound
To indicate the number of iron atoms
To indicate the charge of the compound
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the complete formula for Iron III Dichromate?
Fe2(Cr2O7)3
FeCr2O7
Fe(Cr2O7)2
Fe3(Cr2O7)2
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