The soda bottles pictured all contain codes included in the SPI resin identification system. Since these plastics are recyclable, why might a recycling facility require the cap and label to be separated from the main bottle body prior to depositing it in a recycling container?

Q: Why each polymer gives a different melting temperature, Tm?

A: Polymer is consisting of more no. Of monomer . By connecting many repeating unit they are made up…

Q: Define polymer chemistry.

A: A polymer is a substance consisting of large molecules or macromolecules. Polymers consist of a…

Q: What are the applications of polymers in real life?

A:

Q: List down the classification of Biodegradable polymers with it's importance and function.

A: Biodegradable polymers are classified as, Natural biodegradable polymers                 Obtained…

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: Write the steps for formation of tetrachloromethane (CCl4) from the reaction of methane with Cl2 +…

A: This is the Halogenation reaction of alkane in presence of ultraviolet light. R-H  (excess)  + X2/…

Q: Why do vinyl raincoats become brittle as they get old, even if they are not exposed to air or to any…

A: Materials made from polyvinyls are usually hard and brittle. This is a result of the individual…

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

A: CASEIN PLASTIC: when skim Milk is acidified by adding in hot water then, Casein is precipitated out…

Q: Common Polymers 1. nylon 2. polypeptides 3. cotton 5. cellulose 6. PVC 7. polystyrene

A: Polymers can be broadly categorized into two groups: those found in living systems (biopolymers) and…

Q: Define thermoplastic and thermosetting polymers. Give one example of each.

A:

Q: Determine if concentrated ethanol and water are incompatible. If they are incompatible, state the…

A: Given: Concentrated ethanol and water. To find: Whether they are compatible with each other or not.…

Q: Where on the periodic table would you expect to find another element that could be used as an…

A: Answer -  n-type materials are generally differentiated using hot-point probes. This laboratory…

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: 6. Polyethene, aka Polyethylene, is what type of polymer? a. Addition b. Condensation C. Polyamide…

A: Polymers are macromolecules composed of large molecules which can be broken into simpler chemical…

Q: What is the formula for determining the molecular weight of a polyelectrolyte polymer? Is it…

A: Polyelectrolytes are polymers with an electrolyte group in their repeating units. Polyelectrolytes…

Q: 3. Polymer structures i) Draw the chemical structure of the "mer", ii) compute repeat unit molecular…

A: The answer is as follows:

Q: Define the term biodegradable?

A: Fuel fertilizer, compost, and biogas are all made from biodegradable waste. Biodegradable waste…

Q: storage

A: The stability is mainly affected by storage time and also by other factors that increase the…

Q: Consider a hypothetical tough polymer that exhibits exceptional mechanical properties. This polymer…

A: The exceptional toughness of a hypothetical polymer arises from several key polymer chemistry…

Q: 1. Based on your field of interest (Civil Engineering), what are the commonly used polymers and what…

A: Polymer materials account for the highest growth area in construction materials. In basic terms,…

Q: State the process that is used to separate kerosene and diesel fuel. State the operating conditions…

A: 1) The mixture of kerosene and diesel fuel are miscible with each  other.

Q: Most plastics are made using chemicals extracted from oil. Currently, only a small fraction of…

A: In the current scenario , we are not doing enough to recycle . This is true when it comes to…

Q: What are important factors influencing the properties of polymers?

A: Polymers are materials made of long, repeating chains of molecules. The materials have unique…

Q: a) Explain what catalytic cracking and catalytic reforming are and how they work in oil refineries.…

A: Question 1: Answer: Catalytic cracking:          Catalytic cracking is now one of the most important…

Q: نقطة واحدة نقطة واحدة can be heating and ......33 .reshaped is A. Thermoset. O B. Thermoplastic. O…

A: Thermoplastic polymer are those polymer which can be reshaped by changing the temperature is called…

Q: Thermosetting polymers chemically changed at high temperatures. True O False

A: Thermosets are polymers in which a crosslinking reaction occurs  and creating a three-dimensional…

Q: List three potential benefits of biodegradable polymers.

A: Please find your solution below : Biodegradable polymers are the special class of polymers that can…

Q: advantages and disadvantages of the polymer blends

A: Polymer can be defined as a macromolecule that consists of large number of monomers.

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

A: Answer

Q: The first step in water treatment plant is chlorination to kills microorganisms screening to removes…

A: Correct option : Screening to remove large objects                               such as fish and…

Q: Using poly(propylene) as an example, please explain ‘tacticity’ in polymers, and ‘tacticity’ arises…

A: It is a relative stereochemistry of adjacent chiral centre within a macromolecule.

Q: Name the polymers used in laminated sheets and give the name of monomeric units involved in its…

A: The simpler units which combine to form polymers are known as monomers. The process by which…

Q: NazS (1) + CDNO3 (1) → CdS (s) +2NaNO3 (1) is which type of reaction? double-displacement…

A:

Q: GUIDE QUESTIONS: 1. What are other oils, besides coconut, that are used to make bath soaps? 2. Based…

A: (1) There are some other oils besides coconut oil -  * Sun flower oil * Sweet almond oil * Olive oil…

Q: Provide two examples of thermoresponsive polymer and its applications in modern technologies

A: Thermoresponsive polymers are a class of materials that undergo a reversible change in their…

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

A: As per rules only 3 subparts of a question can be answered.   Polymers are repeating units of…