Chemical Names and Formulas Worksheet
Grade 9 Chemistry worksheet focusing on naming chemical compounds, writing formulas, and understanding ionic and covalent bonding.
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Chemical Names and Formulas
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is the chemical formula for sodium chloride?
NaCl2
Na2Cl
NaCl
Na(ClO)2
2. Which of the following is a covalent compound?
KCl
H2O
CaO
Fe2O3
3. An ionic bond typically forms between a and a nonmetal.
4. The chemical name for H2SO4 is .
5. In a covalent bond, electrons are between atoms.
6. Write the chemical formula for aluminum oxide.
7. Name the compound with the formula PCl5.
8. Examine the diagram below, which illustrates a type of chemical bond.

a) Is this an ionic or covalent bond? Explain your reasoning.
b) Provide an example of a compound that forms this type of bond.
9. All binary ionic compounds end with the suffix '-ide'.
True
False
10. The Roman numeral in a chemical name indicates the number of atoms of that element.
True
False