Chemical Formula Writing Worksheet
Grade 11 Chemistry worksheet focusing on writing chemical formulas for ionic and covalent compounds, including those with polyatomic ions.
Includes
Standards
Topics
Chemical Formula Writing
Name:
Date:
Score:
Read each question carefully and write the correct chemical formula for the given compounds. Pay attention to oxidation states, polyatomic ions, and prefixes for covalent compounds.
Write the chemical formula for the following ionic compounds:
1. Sodium chloride:
2. Magnesium bromide:
3. Aluminum oxide:
4. Iron(III) sulfate:
Write the chemical formula for the following covalent compounds:
1. Dihydrogen monoxide:
2. Carbon tetrachloride:
3. Sulfur dioxide:
4. Dinitrogen pentoxide:
1. Which of the following is the correct formula for Ammonium Phosphate?
NH₄PO₄
(NH₄)₃PO₄
NH₄(PO₄)₃
NH₃PO₄
2. What is the chemical formula for Calcium Carbonate?
CaCO₃
Ca(CO₃)₂
Ca₂CO₃
CaCO₂
1. Explain the criss-cross method for writing chemical formulas for ionic compounds.
1. The prefixes 'mono-', 'di-', 'tri-', etc., are used when naming ionic compounds.
True
False
2. Roman numerals in a compound name indicate the charge of a transition metal cation.
True
False
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