Chemistry Essays Examples For College & High School Students in PDF

1489 total results

The Reasons Why Knowledge is a Chemistry Important to Biology (511 words, 2 pages)

Biology is the study of all living things and chemistry is the study of chemicals and their interactions. So, how are they related? Our bodies are made up of hundreds and hundreds of chemicals. We just dont think of them like that. Did you ever wonder how your body turns ... Read More

An Analysis of the Topic of Aluminium (2043 words, 4 pages)

AluminumAluminum is a lightweight, silver-colored metal that can be formed into almost any shape. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into wire or made into cans. Aluminum does not rust, and it resists wear ... Read More

An Analysis of the Benefits of the Use of Plastics in Modern Society (833 words, 3 pages)

Many individuals today have civilized bodies and barbarous souls. Many are blind to the real sights of this world and deaf to its voice. However, no matter how ignorant one may be, he or she cannot disregard the significance of plastics in his or her life. Although they were not ... Read More

Nobel Prize Won by Harold Urey for Discovery of Deuterium (317 words, 1 pages)

Jikesh Patel11300Block FHarold c. UreyHarold Clayton Urey was a scientist whose discovery of deuterium helped him win the Nobel Peace Prize for Chemistry in 1934. He also made fundamental contributions to the production of the atomic bomb through his development of the isotope separation processes for the Manhattan Project.Harold Urey ... Read More

A Report on Platinum, a Transition Metal (209 words, 1 pages)

Antonio de Ulloa discovered platinum in South America in 1735 and by Wood in 1741. Platinum is a silver-white metal that holds even more value then gold. Its atomic number is 78 and its mass is 195.08. It is also one of the heaviest metals. It is a transition metal ... Read More

The Characteristics and Use of Starch (1394 words, 4 pages)

STARCHStarch is a white, granular, organic chemical that is produced by all green plants. Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents. The basic chemical formula of the starch molecule is (C6H10O5)n. The simplest form of starch is the linear polymer ... Read More

A Study of Titration (563 words, 3 pages)

TitrationProblem When adding acids and bases what is the titration of the two?ResearchAmounts of reactants and products in a reaction are commonly investigated in two ways in the lab, gravimetrically (by mass), and volumetrically (by volume and concentration). Titration is the name we give to the process used to determine ... Read More

A Lab Experiment: the Uses of Spectrophotometry (1176 words, 2 pages)

The purpose of this lab experiment is to understand the uses of spectrophotometry. This experiment concentrates on the uses of the spectrophotometer, and using this instrument to specifically determine the absorption spectrum of a cobalt chloride solution, a galactose solution, and to determine an unknown concentration of a galactose solution.Modern ... Read More

An Informative Paper on the Things You Need to Know About Element Platinum (868 words, 2 pages)

I am a silvery metal that is as resistant to corrosion and tarnishing as gold. I am almost as rare and consequently am the likewise highly valued and used in Jewelry. I am also used in chemicals industry as a catalyst, in medicine as an anti-cancer drug, and in catalytic ... Read More

Characteristics of Zinc a Chemical Element (Zn) (910 words, 2 pages)

ZINC by JASON GOMEZZinc is a chemical element with the symbol Zn. It is a low-melting metal that belongs to Group IIb (zinc group) of the periodic table. The atomic number of zinc is 30. With an atomic weight of 65.39, zinc makes up an average of 65 grams of ... Read More

A History of the Discovery and the Importance of the Presence of Oxygen (2159 words, 5 pages)

Oxygen is one of the 92 known elements. An element is a substance that cannot be decomposed into a simpler substance by any simple means. Each of the 92 naturally occurring elements are therefore one of the fundamental materials from which everything in the Universe is made.The History of OxygenOn ... Read More

An Introduction on Chemistry and Organic Chemistry (1454 words, 5 pages)

Chemistry has been called the science of what things are. Its intent is the exploration of the nature of the materials that fabricate our physical environment, why they hold the different properties that depict them, how their atomic structure may be fathomed, and how they may be manipulated and changed.Although ... Read More

An Introduction to Pyrotechnics, Fireworks are Fun (498 words, 1 pages)

Pyrotechnics is defined as the art of making and using fireworks. Some consider fireworks dangerous, obnoxious bursts of noise others consider them beautiful, artful displays of light. Either way you look at it, pyrotechnics is an interesting and dangerous hobby. Many colors and designs may be created by the placement ... Read More

The Production of Ammonia and the Haber Process (1193 words, 3 pages)

1. The Haber ProcessDuring the first decade of the twentieth century the world-wide demand for ammonia for use in fertilisers (in the form of nitrates) and in the production of explosives for use in mining and warfare could only be satisfied on a large scale from deposits of guano in ... Read More

An Introduction to the Study of pH: The Measure of H + (a Proton) a Concentration of a Solution (537 words, 2 pages)

The Study of pHpH is the measure of H (a proton) a concentration of a solution. In order to understand pH, a scale has been designed, this scale ranges from 0 to 14. Anything from 0 to 6.99 is acidic, a substance that increases hydrogen ions concentration in a solution, ... Read More

Qualitative Analysis of Cations (730 words, 4 pages)

Qualitative Analysis of CationsIntroductionThe purpose of this experiment is to demonstrate the separation and identification of metal ions based on the insolubility of certain salts. The solubility rules should be taken into account. If a solution dissolves in water, the result contains both cations and anions. Analyzing different ions to ... Read More

A Review of the First Reactor Chronicles (213 words, 1 pages)

The First ReactorThe First Reactor chronicles the conception and implementation of the first self-sustaining nuclear pile. The booklet has three main sections to it. The first one tells of the history and background of the organizations and research that were used for the momentous experiment, as well as the actual ... Read More

Information About Citrine Mineral and the Process of Rock Cycle (1848 words, 6 pages)

According to Websters Dictionary, the definition of a mineral is an inorganic substance. Citrine is one of the most popular minerals. It is a variety of quartz. Citrine is a yellowish-orange mineral. Citrine is a very popular gemstone because it is very affordable and very pretty. Along with topaz, citrine ... Read More

An Analysis of Potassium, The Chemical Element (646 words, 2 pages)

potassiumpuh-tas'-ee-uhmThe chemical element potassium is a soft, light, silver white metal. It is a member of the alkali metals, a group (IA of the periodic table) with similar physical and chemical properties. Its chemical symbol is K (from kalium, the Latinized version of the Arabic word for "alkali"). Its atomic ... Read More

An Introduction to the Properties of an Element Radon (577 words, 2 pages)

Radon is an element that is on the periodic table of elements. It is a member of the family called the noble gases, which is group number 18. Radon is a gas. It is a gas at 298 k. it is the heaviest known mononuclear gas at that temperature. Radon ... Read More

An In-Depth Look at the Synthesis, Structure and Use of Polymers (441 words, 2 pages)

Polymer, substance consisting of large molecules that are made of many small, repeating units called monomers, or mers. The number of repeating units in one large molecule is called the degree of polymerization. Materials with a very high degree of polymerization are called high polymers. Polymers consisting of only one ... Read More

A Description of the Process by Which Salivary Amylase Breaks Down Starch into Maltose (988 words, 4 pages)

Salivary Amylase LabIn this laboratory, I observed the process by which salivary amylase, an enzyme secreted by the salivary glands in the mouth, breaks starch down into maltose. This requires a relatively straightforward experiment with only a couple of indicators, some test tubes, and a starch source. To understand the ... Read More

A Look at Great Chemists in History (1933 words, 11 pages)

Chemical reactions are the heart of chemistry. People havealways known that they exist. The Ancient Greeks were the firststo speculate on the composition of matter. They thought that itwas possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist namedGeorg Ernst Stahl was the first ... Read More

A Biography of Ernest Rutherford, Nobel Prize Winner in the Science of Chemistry (753 words, 1 pages)

Ernest RutherfordErnest Rutherford was born in New Zealand in 1871 as one of 12 children. It was Rutherford who first "split" an atom and who discovered the atomic "nucleus", a name that he invented. For this he is regarded as the greatest experimental physicist of his time. Rutherford was one ... Read More

A Qualitative Analysis of a Chemical Process (2100 words, 5 pages)

Qualitative AnalysisIntroductionQualitative analysis is used in the determination of the identity of a substance. It is different from quantitative analysis, which deals with the determination of the amount of a substance. In this experiment, qualitative analysis techniques are used to determine whether or not a sample contains a certain ion. ... Read More

An Argument in Favor of Polyethylene in Productiction (1166 words, 3 pages)

Year 11 Chemistry Unit 1POLYETHENE-ain't it choice!word count 1131Polyethene also known as polyethylene or polythene, was the first of the polymers to be discovered. Polyethene is a polymer produced by reacting oxygen and ethene, in this reaction the small ethene molecules attach together to form long chain polymer molecules. This ... Read More

An Overview of the Element Phosphorus and Its Uses (1143 words, 4 pages)

PHOSPHORUSIntroductionThe element that is featured in this report is phosphorus. Phosphorus is a chemical element that human beings, animals, and plants need for normal growth. The main use of phosphorus is fertilizer. It was difficult to find a lot of different information on this element.DescriptionPhosphorus is a nonmetallic chemical element ... Read More

A Biography of the Life and Influence of French Chemist Louis Pasteur (1030 words, 3 pages)

PASTEUR, Louis (1822-95). The French chemist Louis Pasteur devoted his life to solving practical problems of industry, agriculture, and medicine. His discoveries have saved countless lives and created new wealth for the world. Among his discoveries are the pasteurization process and ways of preventing silkworm diseases, anthrax, chicken cholera, and ... Read More

A Report of Rot Race Laboratory (341 words, 1 pages)

Biology4th BlockRot Race Lab ReportName Rot Race Purpose To see how fast organisms and materials decay under certain conditions.Procedure We gathered 4 2-liter plastic pop bottles and cut them to assemble the drawing below. Near the bottom we placed a siv to let juices drain through into the bottom 2-liter. ... Read More

An Analysis of the Expression of a Gene in Protein Synthesis (1603 words, 3 pages)

Protein SynthesisThe Expression of a GeneThe process of Protein Synthesis involves many parts of the cell. Unlike other similar productions, this process is very complex and precise and therefore must be done in proper sequence to work effectively. The slightest error during this process could cause the action to experience ... Read More

Chemistry Essay Examples