Plastics and Polymers

Molecules undergoing addition polymerization must contain double bonds (C=C) or other types of reactive functional groups that can initiate polymerization. These reactive sites allow for the addition of monomer units to form long polymer chains without any byproducts.

To remove sticky residue from paper tags on plastic, you can try using rubbing alcohol, vinegar, or a mixture of baking soda and water. Apply the chosen solution onto the sticky area, let it sit for a few minutes, then scrub gently with a cloth or sponge until the residue lifts off. Finally, rinse with water and dry the surface.

It's not that simple, as there are other things apart from the material that determines the quality of the finished product.

Basically you have material, design and assembly, and they all have to cooperate. If one of them is poor, then the end result will be poor

Yes, bubble wrap is a type of polymer, specifically made from polyethylene. The polymer is formed into small bubbles of air that are sealed between two layers of plastic film to create the protective packaging material we commonly see.

Cellulose is a natural polymer made of glucose monomers, containing 3000 or more glucose units. It is an essential structural component in plants and is a major source of dietary fiber for humans.

It is also called The Chromosomal Material, or Substance.

You'll need 1 tablespoon of cornstarch, 1 tablespoon of water, and a couple drops of cooking oil. Just mix everything up and microwave it for about 20-30 seconds on high. Then take it out, let it cool for about a minutes, and kneed the plastic with your hands. You'll be able to mold it into a shape, and after 20 hours or so, it should be hard.


It will decompose and disappear if you bury it in your yard ;)

A plastic straw is a small, thin tube made of plastic that is used to suck up liquids, typically in beverages like sodas and cocktails. They are single-use items that contribute to plastic pollution and harm the environment.

Lipids have the least structural variety among biological polymers. They consist mainly of fats, oils, and waxes, and their structures are simpler compared to proteins, nucleic acids, and carbohydrates. Lipids are primarily composed of carbon, hydrogen, and oxygen atoms.

When you see a transparent object in a clear liquid, it is due to the principles of refraction and transmission of light. Light passes through the transparent object and is bent or refracted when it enters the object, which allows you to see the object's shape. Additionally, the contrast between the object and the liquid allows you to visually distinguish them.

you don't actually get a pen , when you talk to the postman he (or it!) gives you the form then you go to the study , then get the form and click on the paper then fill the ink up and scribble on it , click back on the form and give it to the postman and viola you have the package

Absolutely. They're generally made of polyethylene (polythene), which is a hydrocarbon and therefore an organic compound.

The monomers of Buna S are 1,3-butadiene and styrene. These two monomers undergo polymerization to form the copolymer known as Buna S, which is a type of synthetic rubber.

Basically anything that is made of biological materials like untreated wood or non-synthetic fabrics, essentially man made products like a wooden chair (not varnished), whicker goods, biological detergent, are but a few examples.

Without plastic bags, alternative options include using reusable bags made from materials such as canvas, jute, or cotton. Additionally, paper bags are commonly used as a biodegradable alternative. Some stores offer a system of returnable containers that customers can use and bring back for refilling.

Plastic furniture refers to furniture items made primarily from plastic materials, such as polyethylene, polypropylene, or PVC. This type of furniture is known for being lightweight, durable, and weather-resistant, making it suitable for outdoor use. Plastic furniture is available in various styles and colors, and it is often easy to clean and maintain.

Paper is made of cellulose fibers, which are derived from plant materials such as wood pulp. Cellulose is a natural polymer that gives paper its strength and flexibility.

The idea is to draw a circle (two actually), using the ends of the paperclip to establish the radius of the circle, one pencil to anchor an end of the paperclip as the center of the circle, and a second pencil at the opposite end of the paperclip to draw the circle. Step by step, with the following diagram of characters, where the 'x' shows the place of the pencil that does not move, as the center of the circle, 'y' shows the place of the second pencil that moves to draw the small circle, and 'z' shows the place of the second pencil that moves to large small circle: (x______y)__z) # Place the paperclip on a piece of paper; # Put the first pencil inside the end of the paperclip that has just one loop ('x' above in the diagram). This pencil stays put, and is the center of the circle; # Put the second pencil inside either of the loops at the other end of the paperclip. Move this second pencil to draw a circle.

different erasers are different materials so both. some are made from rubber that comes from trees and others are made syntheticly

That process is called conducting a waste audit. It involves sorting and counting waste materials like plastic bags to understand patterns of consumption and disposal. Results from waste audits can inform strategies for reducing waste and promoting sustainability.

Both condensation polymers and addition polymers are formed through polymerization, a process in which monomers are combined to form larger polymer chains. Additionally, both types of polymers can have high molecular weights and are used in a wide variety of applications.

There is typically only one plastic bag inside another plastic bag, unless they are packaged in multiples.

Branched polymers have side chains or branches extending from the main polymer chain, giving them a more complex and three-dimensional structure. This branching can affect the physical properties of the polymer, such as its flexibility, crystallinity, and viscosity. Branched polymers often exhibit different properties compared to their linear counterparts, making them useful in various applications, such as in adhesives and viscosity modifiers.

Synthetic polymers can cause environmental pollution when they are not properly disposed of. They do not biodegrade easily, leading to accumulation in landfills and natural environments. Additionally, plastic polymers can break down into microplastics, which are widely distributed in ecosystems and can harm wildlife and marine life.