Grade 9 Chemistry: Formula Writing Worksheet
A worksheet for Grade 9 chemistry students to practice writing chemical formulas for ionic and covalent compounds.
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Grade 9 Chemistry: Formula Writing
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Date:
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Read each question carefully and follow the instructions to write the correct chemical formulas.
Write the chemical formula for each of the following ionic compounds:
1. Sodium Chloride:
2. Magnesium Oxide:
3. Aluminum Sulfate:
4. Calcium Phosphate:
5. Potassium Iodide:
Write the chemical formula for each of the following covalent compounds:
1. Carbon Dioxide:
2. Dinitrogen Pentoxide:
3. Sulfur Trioxide:
4. Phosphorus Trichloride:
5. Carbon Tetrachloride:
1. What is the correct chemical formula for Iron(III) Oxide?
FeO
Fe₂O₃
Fe₃O₂
Fe₂O
Indicate whether each statement is True or False.
1. The formula for water is H₂O.
True
False
Explain the difference between writing formulas for ionic compounds and covalent compounds.