Question detail
Give an example of a covalent substance that forms a polymer and describe its properties.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Chemical bonds, ionic, covalent and metallic
Question
Give an example of a covalent substance that forms a polymer and describe its properties.
Answer
An example of a covalent substance that forms a polymer is polyethylene, which is made from the monomer ethylene. Polyethylene is flexible, durable, and resistant to moisture, making it useful for packaging materials.
Explanation
This answer is strong as it provides a specific example of a polymer, along with its properties, demonstrating the student's ability to apply knowledge of covalent substances and their characteristics. It tests both recall and application of the concept.
Common mistake
Misunderstanding Polymer Size
Students often think that all covalent substances are small molecules and do not recognize that some can form very large structures like polymers.
Emphasize that polymers are large molecules made of repeating units, and practice identifying examples of both small molecules and polymers.
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