31. Решение задачи по химии №003 180
240. What is the relationship between heat resistance and combustibility of polymers. How do the features of the chemical structure of polymers (polyvinyl chloride, polystyrene, polytetrafluoroethylene, cellulose) affect their heat resistance and flammability?
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Оплата и выдача товара осуществляются через партнёрскую платформу.
