(a)
Interpretation:
The given term PLA has to be defined.
Concept Introduction:
Polymers are macromolecules which are formed a by number of repeating units called monomers.
(b)
Interpretation:
The reasons why corn is printed in center of recycling symbol has to be indicated.
Concept Introduction:
Polymers: Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization.
Polymers are macromolecules which are formed a by number of repeating units called monomers.
(c)
Interpretation:
The reasons that supports why PLA is defined as eco-friendly polymer have to be identified.
Concept Introduction:
Polymers: Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization.
Polymers are macromolecules which are formed a by number of repeating units called monomers.
(d)
Interpretation:
The reasons that supports why PLA is defined as eco-friendly polymer have to be counter argued.
Concept Introduction:
Polymers: Monomers combine together to form polymers. Monomers are the repeating units of small molecules which link together to form polymers and the process is called as polymerization.
Polymers are macromolecules which are formed a by number of repeating units called monomers.
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Chemistry In Context
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- Paragrph 4: Discusses the importance of recycling polymers and includes a recycling chart that list the 7 recycles codes and the polymer type.arrow_forwardنقطة واحدة نقطة واحدة نقطة واحدة نقطة واحدة = ||| can be heating and Cannot be heating The are .33 .reshaped is A. Thermoset. B. Thermoplastic. .34 .and reshaped is A. Thermoset. B. Thermoplastic. The polymer is if heated too.35 .much, they burn is A. Thermoset. B. Thermoplastic. O Production of .36 .plastic products A. Seven. B. Four. C. Three.arrow_forward5. The reactions in which polymers are produced are called A. Decomposition B. Polymerization reactions. C. Single displacement D. Synthesisarrow_forward
- Identification Type 1. Agroup of three numbers that indicate the orientation of a plane or set of parallel planes of atoms in a crystal is called what? 2. A long chain giant organic molecules are assembled from many smaller molecules called monomers or mers. It comes from the Greek word poly meaning “many" and meros meaning "part". 3. It is the experimental science of determining the arrangement of atoms in solids. 4. List the classifications of Polymers based on composition. 5. List classification of Polymers based on physical property related to healing 6. What is a type of rock that contains minerals with important elements including metals? 7. What is the difference between Primary metals and Secondary metals? 8. Give an example of natural Polymer. 9. Give an example of Synthetic Polymer. Matching Type 1. Match the terms given in Column I with the compounds given in Column II. Column I Column II (1) Acid rain (ii) Photochemical smog (iii) Combination with haemoglobin (iv) Depletion…arrow_forward3. Polymer structures i) Draw the chemical structure of the "mer", ii) compute repeat unit molecular weights (in g/mol) for the following and iii) identify one application for each of these polymers in biomedical engineering. a. poly(tetrafluorethylene) b. poly(lactic acid) c. Poly (ethylene terephthalate) d. Poly(dimethyl siloxane)arrow_forwarda. Explain the differences between a pendant and stiffening groups in polymers.b. What is the effect of stiffening and softening groups on the properties ofpolymers? Explain by using suitable examples.arrow_forward
- 12. Which is NOT TRUE aboutthermoplastic polymers? a. they maintain their shape and strength when heated. b. they must be heated to "set" or "lock in" their structures. c. they offer increased strength but lose their shapeupon further heating. d. chains are tied together by actual chemical bondsarrow_forwardShow the universal recycling codes to the learners. Or hang a poster of the codes in the classroom for the learners to examine. Ask the learners to bring a plastic product with any of the recycling code listed below. Ask them to describe the material: 1. What is the sample polymer material used for? 2. What recycling code is printed on the sample? 3. Describe the material in terms of hardness and/or flexibility. 4. Why are recycling codes used in the plastic materials?arrow_forwardI. a. What are polymers and how are they found from alkene monomer? b. Discuss briefly plastic recycling. What kind of plastics can be recycled?arrow_forward
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