Multiple Choice
Which pair of compounds has the same empirical formula?
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3. Chemical Reactions
Empirical Formula
Multiple Choice
How many different elements are present in the compound Fe2O3?
A
1
B
2
C
4
D
3
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Verified step by step guidance1
Identify the chemical formula given: Fe2O3.
Recognize that the formula consists of symbols representing elements: Fe and O.
Count the unique element symbols present in the formula. Here, Fe stands for iron and O stands for oxygen.
Determine the total number of different elements by counting these unique symbols.
Conclude that the compound Fe2O3 contains 2 different elements.
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