Which terms are correctly matched to their definitions?
I. Plastic - a long chain molecule synthesized by linking together many single parts.
II. Polymer - can be molded when hot and retains its shape when cooled.
III. Thermoplastic - can be molded when hot and retains its shape when cooled.
IV. Thermosetting plastic - can be molded when first prepared, but hardens irreversibly when
Cooled.

Question

Quizplus · Accepted Answer

III correctly defines a thermoplastic as a type of plastic that becomes moldable at a certain elevated temperature and solidifies upon cooling. IV accurately describes thermosetting plastic, which can be molded into shape once and hardens permanently upon cooling, making it impossible to remold.

Which Terms Are Correctly Matched to Their Definitions