Covalent Formulas Worksheet
Grade 12 Chemistry worksheet focusing on understanding and writing covalent formulas, including Lewis structures and molecular geometry.
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Covalent Formulas Worksheet
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Read each question carefully and provide detailed answers. Show all your work for calculations and draw complete Lewis structures where required.
1. Which of the following compounds exhibits a pure covalent bond?
NaCl
H2O
Cl2
CH4
2. What is the molecular geometry of a molecule with two bonding pairs and zero lone pairs around the central atom?
Bent
Trigonal planar
Linear
Tetrahedral
3. A covalent bond involves the of electrons between two atoms.
4. The ability of an atom to attract electrons in a covalent bond is called .
5. Draw the Lewis structure for carbon dioxide (CO2) and predict its molecular geometry. Explain your reasoning.
6. Compare and contrast polar and nonpolar covalent bonds. Provide an example for each.
7. All molecules with polar bonds are polar molecules.
True
False
8. A double bond consists of two sigma bonds.
True
False
9. The diagram below illustrates the formation of a covalent bond. Label the shared electrons and the nuclei.
10. Discuss the VSEPR theory and how it is used to predict the molecular geometry of covalent compounds. Provide examples of at least three different molecular geometries and the factors that determine them.