Why Kevlar are strong materials and have high melting temperature?   2. What is the application of Bakelite?

Q: What is the chemists’ solution to non-biodegrable plastics?

A: Non-biodegradable plastics are defined as the plastics which are made up of polymers which are not…

Q: If the lime recommendation for 1-hectare of land is 6 tons of pure CaCO3, how much of Ca(OH)2 will…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: What is Kevlar and Bakelite? 2. Draw and briefly explain the structure of Kevlar? 3. What makes…

A: Polymer chemistry:

Q: Why is styrene filtered through a pipette of alumina before beginning the polystyrene synthesis?…

A: Alumina  is a good adsorbant.It absorb small particle of particles when any materials passed through…

Q: Q9. Which of the following lithography printing causes almost no damage to the mask used during the…

A: Answer : Projection Printing  Proximity printing also have a gap During proximity printing, the…

Q: Name the polymer used for making radio television cabinets and feeding bottles of children.

A: Polymer is the substance which is made up of repeated units of monomers. The number of monomers…

Q: Draw and then rank order these polymers from highest tensile strength to lowest:…

A: Ans. polytetrafluoroethylene (PTFE): Polytetrafluoroethylene, or PTFE, is made of a carbon backbone…

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A:

Q: Draw the following apparatus and give the definitions: Microscopes Slides Test tubes

A: Apparatus in chemistry lab are the equipment which is required for performing a chemical reaction in…

Q: 15. Nylon and cotton are a. addition polymers b. condensation polymers

A: Nylon and cotton both are classified as condensation polymer. Nylon is a polyamide as it form…

Q: Plastic 1. What are the general properties of plastics? low cost, easy to manufacture, durable,…

A: The general properties of plastics are :-  i) Low cost. ii) Easy to manufacture. iii) Durable iv)…

Q: Question 25 Dylan carried out the following procedure: Step 1 Take a clean, dry jar, and place a lid…

A: The given procedure, 1. Take a clean, dry jar and place a lid tightly on it. 2. Allow it to stand…

Q: 3. Describe the properties of elastomers , fibers, fabrics, and synthetic rubbers.

A: Elastomers are polymers that are having viscosity as well as elasticity and therefore are known as…

Q: 7- is making plastic into a new polymer. incineration O recycling O biodegradable 8-Plastic that is…

A: Incineration -  Incineration is a process of burning of waste material present in organic Substances…

Q: Salts fillers to polystyrene True O False O Water pollution causes .economic loss True O False

A: Fillers used in polymers which are added to polymers to reduce its cost.

Q: 2. What are some of the useful properties of casein plastic?

A: Answer

Q: What aspect of thermoset polymers can be controlled to increase strength?

A: Thermosetting polymer or plastic is referred to those polymers which are hardened irreversibly by…

Q: Weigh out around 0.3 g of cobalt chloride hexahydrate, CoCl,-6H,O, and place it in a clean, dry…

A: Equlibrium reaction of cobalt chloride hexahydrate with ethanol is given below.

Q: 13- The resins are thought to be unrelated to the dissolution and stabilization of solid asphaltene…

A: The resins have a strong aolvating effect on the aggregation and dissolution of asphaltene molecules…

Q: Chelating agent used to inhibit or prevents the development of dental cavities True False

A: in dentistry, chelating agents like EDTA bind with calcium ion by releasing its hydrogen ion and…

Q: 12. The cquation for the preparation of "Teflon from tetrafluoroethene is n(CF, = CF)-(-CF2-CF-)n…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Assign R/S for carbon 2.' Attachments но A. R B. S g ОН 3 S ОН 15 H 16 9 (1 10 ОН N

A: Concept based on the relative configuration of the carbon atom.

Q: 10- Use the Kic-E Chart to identify the polymers and elastomers that have Kie >1 MP.m/2 and Gle>1…

A: Polemers Are classified as thermoset or thermoplastic . A special group of polymer grouped based on…

Q: 9. List down the demanded properties of biodegradable polymer materials for biomedical applications

A: We do have some properties of biodegradable polymer materials which are very important for…

Q: 3. Like polymers, dendrimers are macromolecules (large molecules). Some dendrimers have been used in…

A: Substitution reaction takes place between amine and acid chloride with loss of HCl

Q: (a) Identify the type of polymer given in the following figure. (1) (ii) (b) Elucidate the term…

A: Polymer are very large  molecules   which  is made up of  many repeating molecular unit  which is…

Q: Identify (3) three interests of Millennials and Gen Zs in a swiftly changing work environment.…

A: Millennials are also known as Generation Y and Gen Y. they are the following generation of…

Q: 5. Differentiate between a thermoset and a thermoplastic.

A: Given : Thermoset and thermoplastic. To find: Difference between Thermoset and thermoplastic.…

Q: Which will yield high intensity of light?   a. concentrated acetic acid b. 25% acetic acid c.…

A: Concentration is related to the intensity leaving out of the sample. In the given question different…

Q: 2. Which is more cost-efficient when cooking? Using electric stove or LPG? Support your answer.

A: The two modes of cooking are  1) Using LPG 2) Using electric stove

Q: The problems associated with recycling/disposal does not ir Group of answer choices Virgin resins…

A: According to the question, we need to determine which of the following statement does not include…

Q: 17. melted. O A. Thermoplastics O B. Thermosetting Plastics are cured into permanent shape is Cannot…

A: Form permanent shape that can't be remelted.

Q: 13. The development of modern plastics started in 1920s using raw material extracted from coal and…

A:

Q: An emulsifier: A . to control insects and vermin b. produces and stimulates the production of CO2 c.…

A:

Q: 23 Which of the following compounds has the highest melting point?   A. C6H6 B. H2O C. ZnO D.…

A:

Q: 5.EPS made from------ 1.polystyrene 2. monomer styrene 3. photolysis 6.Thermal insulation has…

A: Question 5: EPS stands for expanded polystyrene. It is a type of thermoplastic foam that is made up…

Q: Paragrph 4: Discusses the importance of recycling polymers and includes a recycling chart that list…

A: Single use plastic is a threat to the environment, since it goes directly to the trash and becomes…

Q: What possible drawbacks do you foresee in polymer technology in the future?

A: The recent developments of Polymer Technology have revolutionized the field of material science…

Q: 1.What are the alternative natural materials can be used in cleaning the following: food stain on…

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: 3. Why is casein plastic no longer used in large-scale manufacturing?

A: Following is the reason for not using casein plastic for large scale manufacturing.

Q: What are the structural requirement of a good fluorophore? select one or more than one   a.…

A: A fluorescent chemical compound which could re-emit light upon excitation of light is known as a…

Q: 45. Which paint contains polystyrene as a base? A. O Synthetic rubber B. O Enamel C. O Aluminium D.…

A: For aluminum titanium dioxide is used as a base Synthetic rubber are polymers derived from petroleum…

Q: Assign R/S for carbon 10. Attachments но- A. R B. S д ОН 3 1 С ОН IS 16. 10 ОН

A: Given compound is :  What is the configuration of carbon number 10 ?  R = Rectus means right handed…