
Concept explainers
Interpretation:
The term
Concept introduction:
Poly means many and mer means unit. Thus, polymer is repetition of units.

Answer to Problem 56A
A polymer is a material which is made of a large number of subunits. Each subunit is called monomer.
Explanation of Solution
Polythene is an example of polymer. It is polymer of ethene. A number of units of ethene join together and forms polythene. Thus, ethene is monomer and polythene is polymer.
Polymers are of three categories:
- Natural
polymers - Synthetic polymers
Semi-synthetic polymers
Natural polymers are the polymers which are obtained in nature. Example: starch
Synthetic polymers are the polymers which are man-made. Example: Teflon
Semi-synthetic polymers are the polymers whose sources are natural and some modifications are done to improve the properties. Example: Vulcanised rubber
Thus, monomer combines in a large number to form polymers.
Chapter 20 Solutions
World of Chemistry
- Part C A solution that is 0.040 M in HCIO4 and 0.046 M in HCI Express your answer numerically to two decimal places. ΜΕ ΑΣΦ ? pH = Submit Request Answer Part D A solution that is 1.08% HCl by mass (with a density of 1.01 g/mL) Express your answer numerically to three decimal places. ΜΕ ΑΣΦ -> 0 ? pH =arrow_forwardPredict the equilibrium arrows for the following reaction:*see imagearrow_forwardProvide the missing information for each of the two following reacitons: *see imagearrow_forward
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- Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the curved arrows to draw the intermediate and product of this hydrohalogenation reaction. Include all lone pairs and charges as appropriate. Br Select to Draw 51°F Sunny esc F1 HBr Select to Draw 1,2-hydride shift Br Select to Draw Q Search F2 F3 F4 1 2 # # 3 DII L F5 F6 F tA $ % Λarrow_forwardplease help i cant find the article to even startarrow_forwardWhat are the missing reagents for the spots labeled 1 and 3? Please give a detailed explanation and include the drawings and show how the synthesis proceeds with the reagents.arrow_forward
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