Plastics and Polymers

No, Victorian children did not use little plastic cubes to learn their times tables. They usually used traditional tools like multiplication tables, flashcards, and repetition to learn their mathematical skills. Toy resources like plastic cubes were not commonly used for academic learning during the Victorian era.

The reaction that breaks the bonds between atoms within a polymer chain is called "scission". The bonds between chains of monomers, if they exist at all, are not chemical bonds and are broken by thermal motion.

*****It is actually called hydrolysis. Hydrolysis is a chemical process in which a molecule is separated into two parts by adding a molecule of water.****

Yes it is. Concrete has almost no tensile strength on its own, which is why some form of reinforcement is used. Generally re-bar, steel shake, or fiber glass is used to improve and reinforce concrete.

Epoxy has a tensile strength of at least 2,400 psi. The compressive strength is almost 10,000 psi.

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In transcription, the monomer linked together is ribonucleotides. These ribonucleotides are added in a complementary manner to the template strand of DNA by RNA polymerase enzyme, resulting in the formation of messenger RNA (mRNA) molecules.

Depending on the type of plastic used in the constuction of the storage bin, plastic storage bins are definitely suitable for outdoor use. There are all sorts of things that they can be used for, including road salt to de-ice your walkway during harsh winters.

A mild soap and warm water solution is often the best cleaner for plastic varnish tools. Avoid using harsh chemicals or abrasives that can damage the plastic. It's also a good idea to rinse and thoroughly dry the tools after cleaning to prevent any residue from affecting future varnishing projects.

Bio-plastics were not discovered by one individual; they were developed through research and innovation by scientists and engineers over time. However, the concept of bio-based materials has been around for centuries, with a more recent emphasis on creating sustainable alternatives to traditional plastics.

Yes, acetone can be used to thin oil-based paints and clean painting tools. However, it is not recommended for thinning latex or acrylic paints as it can cause them to break down and lose their properties. It's important to use acetone in a well-ventilated area and follow safety precautions when working with it.

To remove the plastic from Kachooz pencil toppers, simply tear or cut it along the perforated edges to expose the pencil topper inside. Be careful not to damage the pencil topper while removing the plastic.

Yes, you can use a paper clip as a substitute for eye pins when creating polymer clay items. Simply straighten out the paperclip and insert it into your clay creation before baking. Just ensure the paper clip is fully covered by the clay to securely hold it in place.

Yang Yoseob, a former member of the K-pop group Beast (now known as Highlight), has not publicly confirmed any plastic surgery procedures. Any rumors or speculations about his appearance are subjective and should be taken with caution. It's important to respect his privacy and focus on his music and talent.

For one, dextrose and glucose are both monomers, or to be specific, monosaccharides.

Dextrose and glucose are essentially the same thing, except that dextrose is specifically D-glucose. There exists two stereoisomeric forms of glucose, being D-glucose and L-glucose. "D" refers to "right" and "L" refers to "left". Essentially stereoisomeric means that D-glucose and L-glucose are mirror images of each other. T

The difference between L-glucose and R-glucose is that L-glucose cannot be metabolized during glycolysis which is a component of cellular respiration.

No, not all vinyl contains phthalates. Phthalates are used as plasticizers in some vinyl products to make them flexible, but there are phthalate-free alternatives available. It's important to check product labels or contact manufacturers to determine if phthalates are present.

The plastic in aspirin bottles is typically made of high-density polyethylene (HDPE) or polypropylene (PP) to provide a tight and moisture-resistant seal to protect the medication inside from environmental factors.

In polymerization, a water molecule is often eliminated as a byproduct in a condensation reaction between monomers. This process is known as dehydration synthesis. In the breakdown of a polymer via hydrolysis, water molecules are used to break the covalent bonds between monomers, resulting in the degradation of the polymer into its constituent monomer units.

Plastic shoes can be uncomfortable because they do not breathe well, leading to sweaty feet and potential odor issues. They are also not as durable as other materials, and can be prone to cracking or breaking easily. Additionally, plastic shoes are not environmentally friendly, as they are not biodegradable and contribute to plastic pollution.

Like lithium ion batteries, they do not suffer from battery memory but are also effected by gradual capacity loss caused by oxidization. It happens over a span of years from the manufacturing date, and lithium polymers (lipos) are basically lithium ion batteries that are easier to mold into various shapes needed for certain applications.

A vacuum mold is a shape that is placed in a vacuum molding machine to produce the finished piece. A hot plastic sheet is lowered onto the mold, and then air is vacuumed out from underneath. This pulls the soft plastic sheet down over the mold, and the plastic takes the shape of that mold. Cold air is blown over the setup for a short time, and the molded plastic sheet, with its molded shape formed in it, is lifted off the mold and sent on for further work.

In "Mean Girls 2," the plastics are Mandi Weatherly, Chastity Meyer, and Hope Plotkin. They are the popular girls in school who control the social scene and often engage in mean and exclusive behavior.

As with much household waste, plastic plates degrade very slowly due to the large hydrocarbon chains that are very difficult to break down. They take Millions of years to degarade releasing harmful gases into the atmosphere!

Most polymers are non-Newtonian fluids, meaning that their viscosity changes under different shear conditions. However, some polymers can exhibit Newtonian behavior under certain conditions.

Michael Jackson has undergone several plastic surgeries throughout his life, including multiple nose surgeries, skin treatments, and chin reshaping. The exact number of surgeries is not confirmed, but it is estimated that he had around 10 to 12 procedures.

The chemical formula for PVC (polyvinylchloride) is [-CH2-CHCl-]n, where n is equal to ~60,000 to 140,000. Actual useful formulations of PVC also include a small percentage of various stabilizers to enhance the performance and prevent discoloration from light and heat.

You could probably get one anywhere, but mainly during the summer.

Places like Walmart, Kmart, and Target should have them