Chemical Formulas Worksheet
Grade 12 Chemistry worksheet on understanding and writing chemical formulas, including ionic and covalent compounds, and polyatomic ions.
Includes
Standards
Topics
Chemical Formulas Mastery
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Read each question carefully and provide the best answer. Show all your work for calculations.
1. Which of the following represents the chemical formula for sodium sulfate?
NaSO₄
Na₂SO₄
Na(SO₄)₂
Na₂S
2. What is the name of the compound with the chemical formula PCl₅?
Phosphorus chloride
Phosphorus pentachloride
Pentaphosphorus chloride
Phosphorus(V) chloride
3. An ionic bond typically forms between a and a nonmetal.
4. The chemical formula for calcium nitrate is .
5. Explain the difference between an empirical formula and a molecular formula. Provide an example for each.
6. Covalent compounds are typically formed between two nonmetals.
True
False
7. The Roman numeral in the name Iron(III) oxide indicates the number of iron atoms in the formula.
True
False
8. Observe the diagram below showing an Ionic Bond Formation. Identify the elements involved and describe the process of electron transfer.
