Grade 12 Chemistry: Formula Writing Worksheet
A comprehensive worksheet for Grade 12 Chemistry students focusing on writing chemical formulas for ionic and covalent compounds, including polyatomic ions and hydrates.
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Grade 12 Chemistry: Formula Writing
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Read each question carefully and write the correct chemical formula for each compound. Pay attention to charges, polyatomic ions, and prefixes for covalent compounds.
Write the chemical formula for the following ionic compounds:
1. Sodium Chloride:
2. Magnesium Oxide:
3. Aluminum Sulfate:
4. Iron(III) Nitrate:
Write the chemical formula for the following covalent compounds:
5. Carbon Tetrachloride:
6. Dinitrogen Pentoxide:
7. Sulfur Hexafluoride:
Match the name of the polyatomic ion with its correct formula.
8. Hydroxide
a. PO₄³⁻
9. Carbonate
b. SO₄²⁻
10. Sulfate
c. OH⁻
11. Phosphate
d. CO₃²⁻
Write the chemical formula for the following compounds containing polyatomic ions:
12. Calcium Carbonate:
13. Ammonium Phosphate:
14. Sodium Bicarbonate:
15. What is the correct chemical formula for Copper(II) Sulfate Pentahydrate?
CuSO₄·5H₂O
Cu₂(SO₄)₅·H₂O
CuSO₄(H₂O)₅
Cu₅SO₄·H₂O
Write the chemical formula for the following compounds:
16. Lead(IV) Oxide:
17. Hydrosulfuric Acid:
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