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Some polymers may be strengthened considerably by a mechanism called 'branching'. This mechanism can be described as: Select one: O a. Aligning the long chain molecules in closely ordered proximity to each other be elongating the polymer. O b. Attaching molecules of the same mer as very long side groups, by strong covalent bonds to the backbone of the main chain. Oc. Forming covalent double bonds between adjacent molecules by heating in the presence of oxygen or sulphur. Od. Attaching molecules of a different mer as very short side groups, by weak covalent bonds to the backbone of the main chain. The figure below shows a double chain structure of silicon and oxygen. The chemical formula of the chain structure is (SixOyz-)n. What is the value of z for this structure? Select one: О а. -6 Оb. -2 Ос. -5 O d. -8 Ое. -4

Some polymers may be strengthened considerably by a mechanism called 'branching'. This mechanism can be described as: Select one: O a. Aligning the long chain molecules in closely ordered proximity to each other be elongating the polymer. O b. Attaching molecules of the same mer as very long side groups, by strong covalent bonds to the backbone of the main chain. Oc. Forming covalent double bonds between adjacent molecules by heating in the presence of oxygen or sulphur. Od. Attaching molecules of a different mer as very short side groups, by weak covalent bonds to the backbone of the main chain. The figure below shows a double chain structure of silicon and oxygen. The chemical formula of the chain structure is (SixOyz-)n. What is the value of z for this structure? Select one: О а. -6 Оb. -2 Ос. -5 O d. -8 Ое. -4

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter23: Organic Polymers, Natural And Synthetic
Section: Chapter Questions
Problem 51QAP
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Some polymers may be strengthened considerably by a mechanism called 'branching'. This mechanism can be described as: Select one: O a. Aligning the long chain molecules in closely ordered proximity to each other be elongating the polymer. O b. Attaching molecules of the same mer as very long side groups, by strong covalent bonds to the backbone of the main chain. Oc. Forming covalent double bonds between adjacent molecules by heating in the presence of oxygen or sulphur. Od. Attaching molecules of a different mer as very short side groups, by weak covalent bonds to the backbone of the main chain.
Transcribed Image Text:Some polymers may be strengthened considerably by a mechanism called 'branching'. This mechanism can be described as: Select one: O a. Aligning the long chain molecules in closely ordered proximity to each other be elongating the polymer. O b. Attaching molecules of the same mer as very long side groups, by strong covalent bonds to the backbone of the main chain. Oc. Forming covalent double bonds between adjacent molecules by heating in the presence of oxygen or sulphur. Od. Attaching molecules of a different mer as very short side groups, by weak covalent bonds to the backbone of the main chain.
The figure below shows a double chain structure of silicon and oxygen. The chemical formula of the chain structure is (SixOyz-)n. What is the value of z for this structure? Select one: О а. -6 Оb. -2 Ос. -5 O d. -8 Ое. -4
Transcribed Image Text:The figure below shows a double chain structure of silicon and oxygen. The chemical formula of the chain structure is (SixOyz-)n. What is the value of z for this structure? Select one: О а. -6 Оb. -2 Ос. -5 O d. -8 Ое. -4
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