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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
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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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