Multiple Choice
Which pair of compounds has the same empirical formula?
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Table of contents
- 1. Intro to General Chemistry3h 29m
- Physical & Chemical Changes19m
- Chemical Properties7m
- Physical Properties5m
- Intensive vs. Extensive Properties13m
- Temperature12m
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- 2. Atoms & Elements4h 16m
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- 3. Chemical Reactions4h 10m
- Empirical Formula18m
- Molecular Formula20m
- Combustion Analysis38m
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- 22. Organic Chemistry5h 7m
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- The Alkyl Groups9m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- Boron Family: Borane7m
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- Nitrogen Family Reactions12m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 16m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
- Electron Configurations of Transition Metals: Exceptions11m
- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
- Naming Coordination Compounds22m
- Writing Formulas of Coordination Compounds8m
- Isomerism in Coordination Complexes15m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
- Crystal Field Theory: Octahedral Complexes5m
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- Crystal Field Theory: Square Planar Complexes4m
- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
3. Chemical Reactions
Empirical Formula
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many different elements are present in the compound Fe2O3?
A
1
B
2
C
4
D
3
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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