When rubber balls and other objects made of natural rubber are exposed to air for long periods, they turn brittle and crack. Explain why this happens more slowly to objects made of polyethylene.

Q: A sample of polyethylene glycol is best measured by a. acid value b. ester value C. saponification…

A: Ester value is the numbers of miligrams of KOH ( potassium hydroxide ) required to saponify the…

Q: What is the monomer used to make this polymer? CI CI CI CI ČI In A) Chloroethane B) Chloropropane C)…

A: The polymer given is,

Q: Which of the following compounds could be used to form an addition polymer?

A: Since we know that additional polymerization occurs by olefins i.e alkene to long chain alkanes .…

Q: 1. What is polymer? a. A large molecule made by twisted chains. b. A small molecule made of one…

A:

Q: How many monomers are there in a molecule of PVC if the average molecular weight is 1,000,000 g/mol?

A: The number of monomer units in a polymer is given by: number of monomer units is = average molecular…

Q: Why polymers are widely used in our daily life?

A: Polymers are materials made of long repeated chain of molecules. The materials have unique…

Q: Poly(butylene terephthalate) is a hydrophobic plastic material widely used in automotive ignition…

A: Concept introduction: Polymers are the compound having high molecular mass and are made up of…

Q: Discuss FOUR (4) differences between addition polymerization and condensation polymerization.

A: Polymerization is the process in which the small molecules (monomers) are combined to form large…

Q: Determine the number of H,C=CH, monomeric units in one molecule of polyethylene with a molar mass of…

A: Polymerization is a chemical reaction in which monomers are bound together to form long polymer…

Q: What is the empirical formula of cellulose?

A: The empirical formula of cellulose is to be written.

Q: 1. Write the structure of the polymer, tetrafluoroethylene (up to 10 carbons in length). 2. Write…

A: Polymerization is a process in which a large number of monomer molecules react together to form a…

Q: Which of the following three compounds: - polyethylene [essentially no vapor pressure at 1 atm] -…

A: Sublimation: Sublimation is a process in which the solid state of a matter is directly changed into…

Q: What is a Bio-degardable polymer? Give an example of a biodegradable aliphatic polyester.

A: A polymer is a substance which is composed by very large molecules. These molecules are composed of…

Q: Polychloroprene, commonly known as neoprene, is widely used in wetsuits and in rubber parts that…

A: Polymers are the molecules of high molecular masses formed by the combination of a repeating…

Q: [2.] Draw the one unit copolymer formed from the monomers of vinyl chloride and 1,1- dichloroethene.

A:

Q: How is Polycarbonate made? What is the structure of the Monomer? What is the structure of the…

A:

Q: Polyethylene is used for the production of beach chairs as well as beach balls. Which of these items…

A: There are tow types of polyethylene (1) High density polyethylene (2) Low density polyethylene High…

Q: Synthetic resins and cellulose derivatives are horny tough materials. Such plastics can be easily…

A:

Q: Draw the structures of the monomers of the following polymers :(i) Teflon(ii) Polyethene

A: Teflon It is polytetrafluoroethylene, or PTFE. The molecular structure of Teflon is based on a chain…

Q: EXPLAIN HOW POLYCARBONATE WILL BE RECYCLED, MIXED, AND MOLDED AGAIN TO CREATE THE DESIRED SHAPE

A: When polycarbonate is heated to its melting point, it melts to a liquid form which can be shaped…

Q: a) What is the difference between high- and low-density classifications of polyethylene?

A: A) For the preparation of polythene, the monomer used is ethene . Monomers is the smallest repeating…

Q: They tend to strengthen a material (such as a plastic) made from this polymer. They also make the…

A: A multiple choice question based on polymer that is to be accomplished.

Q: A Polyacrylonitrile = В Poly(tetrafluoroethylene) = C Polyisoprene = Polyisobutylene =

A: In the given options, all are polymers. Only polyisobutylene is the correct name with molecular…

Q: Poly(trimethylene carbamate) is used in high-quality synthetic leather.  What type of polymer is…

A: 1.Poly(trimethylene carbonate) (PTMC), is a copolymer, and its derivatives are currently studied due…

Q: which of the following is not a common use of polyethylene? A) Plastic garbage bags B) Milk…

A: Polyethylene (PE can be used as a wide range of inexpensive uses including supermarket bags and…

Q: The following applications are associated with a particular polymer or plastic. Name the polymer,…

A: Polymers are very large molecules made of many repeating subunits called monomers.

Q: What is the monomer that forms the basis of the cellulose polymer?

A: Cellulose is an organic compound with the formula (C6H10O5)n, a polysaccharide consisting of a…

Q: What is Polyethylene terephthalate ?

A: Polyethylene terephthalate

Q: Do you agree with the statement that if ethylene in polyethylene is derived from a biodegradable…

A: We know that polyethylene is long chain polymer of ethylene and ethylene here is monomer unit. The…

Q: Which functional group can be polymerized to form an organic metal? Oplophol

A: Organic metal are polymers which have conductivity like metal. So polymeric form must contain the…

Q: Write an equation for the formation of the following polymers.(a) Polystyrene, from styrene…

A: The formation equation for the mentioned polymers from the given monomers are to be depicted.

Q: What is the process by which polymers are broken down into monomers?  What is added to the polymers…

A: Polymers are the long and continuous chain of simple monomers. They have high molecular weight.…

Q: which is the monomer of teflon?

A: Polymer:A large molecule which is formed by many simple units called monomers is said to be a…

Q: Which of the following is a naturally occurring plant polymer? a. polyethylene b. cellulose c. wool

A: Polymers: Polymers which are obtained from nature are called natural polymers. Examples: proteins,…

Q: How to draw the Structure of a Polymer Formed from a Monomer ?

A: Polymers :They are the macromolecules that are formed when the monomeric units combine with each…

Q: Low-density polyethylene (LDPE) has a higher degree of chain branching than highdensity polyethylene…

A: Unbranched polyethylene packs more efficiently into compact structure which have more mass per unit…

Q: Explain the general process observed for conjugated polyenes ?

A: Polyunsaturated alkenes or polyenes are compounds that have several C-C double bonds. The double…