Chemical Formulas Worksheet
This worksheet covers understanding and writing chemical formulas, including ionic and covalent compounds, for Grade 11 Chemistry students.
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Chemical Formulas: Grade 11 Chemistry
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Read each question carefully and provide clear, concise answers. Show all your work for calculations.
1. Which of the following is the correct chemical formula for aluminum sulfate?
AlSO₄
Al₂(SO₄)₃
Al₃(SO₄)₂
Al(SO₄)₂
2. What type of bond is typically formed between a metal and a nonmetal?
Covalent bond
Ionic bond
Metallic bond
Hydrogen bond
3. The empirical formula represents the ratio of atoms in a compound.
4. In a covalent compound, electrons are between atoms.
5. The chemical formula for dinitrogen tetroxide is .
6. Explain the difference between an empirical formula and a molecular formula. Give an example for each.
7. Write the chemical formula for each of the following compounds:
a) Magnesium nitride:
b) Sulfur hexafluoride:
c) Copper(II) phosphate:
8. The sum of the oxidation states in a neutral compound must always equal zero.
True
False
9. A Roman numeral in a chemical name indicates the number of atoms of that element.
True
False
Match the chemical formula with its correct name:
10. NaCl
a. Carbon tetrachloride
11. CO₂
b. Sodium chloride
12. CCl₄
c. Carbon dioxide