It is amazing how important things are being discovered by persons who spend most of their lives dedicated to research. It is perhaps more amazing how a scientist discovers one thing while trying to discover other things. Imagine if no one was patient enough to …
Today there is much advancement in the cosmetic world. There are also many scientist (that go back to the ancient Romans) that have invented and experimented with chemicals to produce what we know have today. Eugene Schueller is one of those chemists that helped advance …
The place I decided to do my paper on is located in the living room of my family’s house. It is a one hundred gallon aquarium. The reason I chose this as the topic of my paper is that all kingdoms are present except for …
We wanted to extract, see and analyze DNA from a single strawberry( 12. 11 g). The long, thick fibers of DNA store the information for the functioning of the chemistry of life. DNA is present in every cell of plants and animals. The DNA found …
Copper in pure form has found its significant use only in electrical applications. But with the continued study of copper, the addition of other metals called alloys was developed which enhanced its various properties. Now, different Copper-based alloys were widely used in different aspects of …
The history of explosives and propellants, also known generally as ‘energetic materials’ began with the material known as gunpowder or black powder, whether the intended use was for civil applications such as rock blasting, military uses in demolition, shell filling (bursting charges) and construction projects, …
Introducing with Biochemical Cycles Biochemical cycles Nutrients are important for organisms to function. Each nutrient has a role in global biogeochemical cycles. A nutrient is a chemical that organisms need to live and grow and are substances an organism’s uses for metabolism which must be …
Please go to the following website: http://www. biocourse. com/mhhe/bcc/domains/biolabs. xsp Scroll down and click on the link to Photosynthesis. It is the 6th one down on the left. Read the instructions for entering the virtual lab. There is background information in the online lab manual …
A chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. A vapor-compression water chiller comprises the 4 major components of the vapor-compression refrigeration cycle (compressor, evaporator, condenser, and some form of metering device). These machines can implement …
Water pollution is the contamination of water bodies (e. g. lakes, rivers, oceans and groundwater). Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also …
Lab #3 Separating Metal Cations by Paper Chromatography Introduction/Purpose: In chemistry, it is important to effectively analyze the components in a given mixture. In order to do so, chemists will analyze a mixture either qualitatively or quantitatively using different methods and equipment. Qualitative analyses are …
Fermentation is anaerobic respiration whereby food is altered into more simple compounds and energy in the form of chemicals is produced, an example being adenosine triphosphate (biology-online. org/dictionary/Fermentation). All this occurs with the lack of atmospheric oxygen. At the end of the day alcohol and …
A cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next cycles Write an essay about cycles. Respiration Cells in the body use ATP as a direct source of energy. The conversion of …
Lab Management Assignment Hand Sanitizer 2012 xxx [Pick the date] HAND SANITISER * * A hand sanitizer or hand antiseptic is a supplement or alternative to hand washing with soap and water. * Various preparations are available, including gel, foam, and liquid solutions. * The …
Aaron Wong History and Development of the Periodic Table Period 11 The most basic arrangement of the periodic table was in 1649. By this time, many elements have been known but the first scientific discovery of an element was in 1649. Hennig Brand discovered phosphorus, …
Abstract There are many different laser techniques that can be used in the production of solar cells. By examining the research which the various solar cells were fabricated with laser technique, it is possible to understand the pros and cons of using laser for produce …
Importance of Surfactant Introduction Surfactant is an essential component for the respiratory system to function properly. Knowing the physiology of surfactant in the alveoli is important to know when learning the structure of the air sacs and how they work. This experiment is designed to …
A waste is considered toxic or hazardous if it threatens the health of the people and the destruction of the environment. The waste may be in any form and may be considered toxic even upon its storage. A more distinct characteristic of a toxic waste …
Importance of colloidal dispersion in pharmacy Pharmaceutical Applications of colloids: Colloids are extensively used for modifying the properties of pharmaceutical agents. The most common property that is affected is the solubility of a drug. However, colloidal forms of many drugs exhibits substantially different properties when …
My aim in this experiment is to see how well an enzyme (phosphatase in this case) reacts under a controlled temperature but a varying pH. Enzymes are known to be effected by pH and temperature. Both of these change how quickly the enzyme can process …
CHAPTER I INTRODUCTION 1. 1 Background Food is one of human sources of calorie, protein, fats, and nutrition. Yet, because of the highly nutritious content, food is susceptible to growth of microorganisms. By the presence of microorganisms in food, the food is more likely to …
Catalase- This is an enzyme found in food such as potato and liver. It is used for removing Hydrogen Peroxide from cells. Hydrogen Peroxide is the poisonous by-product of metabolism. It speeds up the decomposition of hydrogen Peroxide into oxygen and water. It is able …
To prepare boric acid from sodium deteriorate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron …
Introduction The purpose of this experiment is to demonstrate an example of how to determine the unknown molarity of hydrochloric acid by titration with a base (sodium hydroxide). Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown …
The leaves are the part of a plant where most photosynthesis takes place. Key: 1. Waxy cuticle: this gives the leaf a waterproof layer, which lets in light. 2. Upper epidermis: provides an upper surface. 3. Palisade cells: contain chloroplasts. 4. Spongy mesophyll: collection of …
Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First, obtain a …
The experiment conducted, isolation of eugenol from cloves, is the extraction of the essential oil. To perform this experiment cloves and water were mixed together and heated by a heating mantle in a round-bottom flask. A direct stem distillation took place, and the oil product …
Density determination by pycnometer is a very precise method. It uses a working liquid with well-known density, such as water. For the purpose of this experiment, distilled water was used. The pycnometer is a glass flask with a close-fitting ground glass stopper with a capillary …
Wh Mia Foust Mr. Dunlap Honor Chemistry, Per 7 December 21, 2010 Glow Sticks Since glow sticks have been invented, consumers have wondered how scientists are able to create these magical sticks of light. They work without producing heat. They don’t need a battery or …
Assessment of synthetic milk exposure to children of selected population in Uttar Pradesh, India Shuchi R. Bhatt1, Dr. Anita Singh2 and S. M. Bhatt3 (Abstract) The present study was carried out keeping in view the recently emerging concern of the adulteration of the natural milk …
Conjugation
The word "conjugation" is derived from a Latin word that means "to link together". In organic chemistry terms, it is used to describe the situation that occurs when π systems (e.g. double bonds) are "linked together". An "isolated" π (pi) system exists only between a single pair of adjacent atoms (e.g. C=C)
Kinetic energy
Kinetic energy is the energy associated with objects in motion. Potential energy is the type of energy associated with an object's potential to do work. Chemical energy is the type of energy released from the breakdown of chemical bonds and can be harnessed for metabolic processes.
Physics
Chemical physics is concerned with the application of the concepts and theories of physics to the analysis of chemical systems and their physical behaviour. While also at the interface between physics and chemistry, it is distinct from physical chemistry.
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