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Schach [20]
2 years ago
8

Common thermoplastic polymers such as polystyrene and PVC can be _______ as often as they are reheated. A) hardened B) shortened

C) softened D) strengthened
Chemistry
1 answer:
tangare [24]2 years ago
5 0
The answer is A) hardened
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Explanation:

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Explanation:

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