specific ingredients in a bouncy ball recipe affect a ball’s bounciness? Background Research: Molecules that are made of recurring chemical units are called polymers. The glue used in this experiment to create bouncy balls contains the polymer polyvinyl acetate (PVA). When this is reacted with Borax, the polymer cross-links to itself. Cornstarch, another major ingredient the bouncy balls, acts as a thickening agent. Hypothesis: If the amount of Borax in the solution is doubled, then the ball will
Introduction Plastic has found its way into every house and office, it’s found in many home appliances and office equipment. The reason for increased use of Plastic is that it has replaced Glass, wood and metals and it’s relatively cheap. Plastic is thrown away after its use and that creates a huge problem regarding the disposal of the plastic. This has resulted in the need for recycling plastic in order to avoid its disposal and to re-use it. The first time used plastic is known as virgin grade
METHODS OF LONG TERM UNDERGROUND STORAGE BY WILLIAM N, NELSON AND STANLEY A. CATLOW Reprinted by the permission of: MAGNUM ENTERPRISES P. O. Box 621 Ephrata, Washington 98823 INDEX Chapter 1....................................4 Above Ground ...........................4 Chapter 2....................................5 Below Ground ...........................5 A. Ammo Cans.......................5 B. Plastic Bags ...................6 C. PVC Pipe........................6 Chapter 3................
Polymerization: PVC (Polyvinyl Chloride) PVC or Polyvinyl Chloride (Poly (chloroethene)) is a type of plastic used all over the world for a range of things such as pipes, clothing and electrical cables. PVC is considered a thermoplastic resin meaning it resoftens when heated. It’s molecular formula is (C2H3CL)n and is a white powder that’s resistant to oxidation and degradation. However, it can be harmful to the environment but since it’s economically beneficial to many countries this is often overlooked
Recycling means collecting and sorting waste for the purpose of producing new products. In Malaysia, the recycling program was officially introduced on December 2, 2000 and the Ministry of Housing and Local Government (ministry) has determined that the 11 November of each year as National Recycling Day. Recycling process involves a variety of solid waste including plastic. Plastics is the solid waste that cannot be decomposed, so the recycling process of this material can help reduce the quantities
Plastics and Our Environment Works Cited Missing Plastics today play an important part in cutting-edge technologies such as the space program, bullet-proof vests and prosthetic limbs, as well as in everyday products such as beverage containers, medical devices and automobiles. Recycled plastics are used to make polymeric timbers for use in picnic tables, fences, and outdoor toys, thus saving natural lumber. Plastic from 2-liter bottles is even being spun into fiber for the production of carpet
Purchasing agility equipment can quickly become a major expense. There are several ways that you can build a course right in your own backyard using materials purchased from a hardware supply store. Building your own agility equipment can be a fun and rewarding experience. Once your obstacles are complete and set up, your dog will be able to practice running the course whenever the desire strikes. Big trial coming up? Now you have a place to run your dog and get him in prime condition to take the
This maximises the intermolecular forces between the chains as they are able to pack closely together. However, this reduces the flexibility and is therefore quite rigid and strong. This isotactic polyvinyl chloride structure occurs very little. Another structure that is produced very little is the syndiotactic PVC. The syndiotactic PVC has a regular arrangement and has similar properties of flexibility, rigidity and strength to the isotactic PVC as
interconversion of 4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone. The purpose of first week was to explore the oxidation of an alcohol to a ketone and see how the reduction of the ketone will affect the stereoselectivity. The purpose of first week is to oxidize the alcohol, 4-tert-butylcyclohexanol, to ketone just so that it can be reduced back into the alcohol to see how OH will react. The purpose of second week was to reduce 4-tert-butylcyclohexanol from first week and determine the effect
1. Introduction Heterocyclic chemistry is the branch of chemistry dealing with the synthesis, properties and applications of heterocycles. The name comes from the greek word “heteros” which means “different”. Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur [1]. The most common heterocycles are classified in aliphatic and aromatic molecule.
Alcohol consumption among young people, although it has seen a decline in recent years, is still a noteworthy contemporary issue. It should be acknowledged that it is a problem that concerns society as a whole and not just individuals or small portions of the population. Many scholars have pointed out that it is not only youth who have problems within the family who engage in illegal drinking but it is a problem that crosses all socioeconomic and ethnic populations. Therefore, the reasons that make
Introduction: We all have seen how Alcohol has had a sizeable impact on sporting events. Sporting events such as the Heineken Cup In Rugby, The Guinness Autumn Rugby Internationals, and The Hennessy Brandy Gold Cup. The All-Ireland Senior Hurling Championship was called the Guinness Hurling Championship when Guinness was the main sponsor between 1995 and 2008. In England Liverpool FC were sponsored by Carlsberg and Heineken also sponsor the Champions League. These are just some brands that have
is familiar with the fruity scents at their local grocery store. Many of these scents are esters. Most of the aromas we know represent a mixture of esters and other molecules like alcohol. The process of making ester is known as esterification. Esters are formed carboxylic acid and a carboxylic acid reacts with alcohol, water is also produced from this reaction. Carboxylic acid contains the –COOH group (Jim Clark, 2003) The general formula for esterification is O O ||
parents who allow teens to experiment with alcohol in a controlled setting with experienced adults. Alcohol consumption should be the decision of a well informed adult. Alcohol should not be regarded as such an unsettling topic when encounters with alcohol are inevitable and prevalent in our daily lives. As a result of harsh restrictions placed on alcohol by our government parents are not only discouraged to inform both negative and positive attributes of alcohol, but they are also looked down upon for
his daughter. “Babylon Revisited” adaptation The Last Time I Saw Paris, directed by Richard Brooks Charlie’s actor falls in love with Helen who has more a fun spirited and loving personality than Charlie. The Factors that lead Charlie to drink alcohol are his frustration
prevention campaigns and research, alcohol and drug use among adolescents still remains a problem today. There has been a myriad of research done on adolescent alcohol and other drug use regarding a plethora of theoretical standpoints that consistently shows that having friends who use alcohol or other drugs is an important factor in whether or not teens will use and to what extent. Friend influence is an important factor to consider when looking at adolescent alcohol and drug use, and can be studied
sale of alcohol beverages to young adults specially teens creates a bad atmosphere full of alcohol abuse. She supports this article by explaining two points: First, American teens, rather than European teens, don 't train well to know how to drink in moderation, and second, compare her daughter 's problem with her own when she was a college student, to see their differences during that time of age. Whelan’s argument might be very interesting for teenager who thinks and dreams about alcohol beverages
What is alcohol? Where does it even come from? Is it bad? What effect does it have on the body? What are the benefits? These popular questions are the focal points of this discussion. The moral and religious debate of whether or not alcohol is wrong to consume is not in the scope of this conversation. Alcohol is a widely used substance by many people, and I intend to take an objective, factual, and practical approach to this topic. What is Alcohol? Chemistry is at the heart of all nutrition. Thus
Sleep deprivation is prevalent throughout a college students’ career. The difference between a student that gets an “A” over a “B” can be the amount of sleep they receive. In other cases, we can jeopardize ourselves from sleep deprivation without realizing it. Even instances where some students may stay up to complete an assignment or play video games, only to succumb to sleepiness the following morning. Sleepiness is the inadequate amount of sleep which can cause drowsiness. It is prominent in fifty
received treatment for an alcohol use disorder at a specialized facility just in 2013. According to the Proquest database, alcoholism is commonly referred to as the excessive consumption of alcoholic beverages. The world health organization estimates there are 140 million alcoholics worldwide. Alcoholism can lead to ca crashes, crimes, violence, abuse, reduced workplace activity and illness. Also according to centers for disease control and prevention, excessive alcohol use is the third leading lifestyle-related