Grade 11 Chemistry: Understanding Molecules
A worksheet for Grade 11 Chemistry students to test their understanding of molecular structure, bonding, and properties.
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Standards
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Grade 11 Chemistry: Understanding Molecules
Name:
Date:
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Read each question carefully and provide your best answer. Show all work where applicable.
1. Which of the following best describes a molecule?
A single atom with a positive charge.
Two or more atoms held together by chemical bonds.
A substance composed of only one type of element.
An atom that has gained or lost electrons.
2. What type of bond is formed when atoms share electrons?
Ionic bond
Covalent bond
Metallic bond
Hydrogen bond
3. The smallest unit of a chemical compound that retains its chemical properties is a .
4. The VSEPR theory helps predict the of molecules.
5. The image below shows a molecule.
6. All molecules are made up of two or more different types of atoms.
True
False
7. The polarity of a molecule is determined by the difference in electronegativity between its constituent atoms.
True
False
8. Explain the difference between an element and a compound in terms of molecules.
9. Describe how intermolecular forces affect the physical properties of a substance.
Match the term on the left with its definition on the right.
10. Polar molecule
a. Uneven distribution of electron density
11. Nonpolar molecule
b. Even distribution of electron density
12. Dipole moment
c. Measure of molecular polarity
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