ANSWER OF QUESTION ( A ) :Mining has really negative effects on the environment. Environmental ethical theories have formed in western states in 20Thursdaycentury. Sustainable is really necessary for the overall development of the state and it means sustain and development. It requires the reason …
Syl Rogers Bio 210 Comparing Fermentation Rate of the S. cerevisiae Yeast in the presence of MgSO4, NaF and Sodium Pyruvate Hypothesis In the fermentation of rate of yeast, S. Cerevisiae, there will be a higher/ faster rate of ethanol production, However, using catalytic enzymes …
Study guide questions: Movements through membrances 1. Prepare a graph that illustrate the diffusion distance of potassium in 10 minutes 2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable …
Introduction: Cyclohexanol is mainly used in the production of caprolactam and adipic acid that is a raw material of nylon 6 (Zhang, et al, 2002). Cyclohexanol can be produce through several methods, which include the oxidation of cyclohexane, the hydration of cyclohexene, or the hydrogenation …
This essay will outline the functions of the main cell components, these consist of the nucleus, nuclear membrane, mitochondria, lysosomes, Golgi apparatus, cell membrane, ribosomes, cytoplasm and endoplasmic reticulum both rough and smooth. Images: [3] Every human body has billions of microscopic units called cells. …
Abstract The purpose of the study is to synthesize salicylic acid from the ester, methyl salicylate, and determine the acid’s dissociation constant and purity. The ester was converted to salicylic acid by base hydrolysis. The products were refluxed and recrystallized, to ensure maximum purity, and …
Aim What are the factors responsible for land pollution in the community of East Dry River Port of Spain, Trinidad? Method of Data Collection How was the data collected? Attempts were made to walk around the street with bags in search of rubbish within #50 …
Introduction In this coursework I will be talking about the experiments, which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet. I will also mention the time which was taken in the …
“Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. These two processes are quite crucial because they are a source to nearly all life on Earth. Both of these processes are quite similar yet differentiate vastly. In this essay I’ll be …
The earth’s crust is the thin layer of rock which makes up to one percent of the whole planet and can range between 1 kilometer and 80 kilometer in different (Alden, 2010). The crust is made of two important types of rocks namely the basaltic …
Photosynthesis Essay During the Light Dependent Reactions, activity occurs within the thylakoids of the chloroplast. NADP+ accepts two high energy electrons and an H+ ion and then converts into NADPH. This process ultimately traps some of the sunlight in chemical form. Then, NADPH is able …
When I was researching for this essay explaining what soil and water conservation means to me, I found two quotes that really stuck out to me. One written by Franklin D. Roosevelt stated, “A nation that destroys its soils destroys itself. Forests are the lungs …
The second trial displayed similar results of a weak presence of carbon dioxide. The solution bubbled up, the cork stayed stationary in the top of the bottle, but the solid did not dissolve completely. A third trial was performed in which we decided to increase …
CHEM 1105 Experiment 4: Determination of a Chemical Formula Introduction When atoms of one element combine with those of another, the combining ratio is typically an integer or a simple fraction. The simplest formula of a compound expresses that atom ratio. When two or more …
CHAPTER 4 REACTIONS IN AQUEOUS SOLUTION MULTIPLE CHOICE QUESTIONS 4. 1Which of the following compounds is a strong electrolyte? E A. H2O B. O2 C. H2SO4 D. C6H12O6 (glucose) E. CH3COOH (acetic acid) Answer: C 4. 2Which of the following compounds is a strong electrolyte? …
Combustion of Gummy Bears Energy is a concept.? Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.? In science the word energy is a concept that expresses two measurable properties, heat and work.? Here is the relationship …
Purpose The chromatography lab is to understand how molecules with similar molecular properties can be separated with paper chromatography. These differences will be interpreted to see the distinction of separate chemical substances. (more…)
The universe is governed by four fundamental forces, or interactions. These forces are the strong nuclear force, weak nuclear force, electromagnetic force, and gravity. The first two forces work on the atomic level but we can observe gravity and electromagnetism every day. Without these four …
Nuclear energy is a type of energy which is released by a reaction called as nuclear reaction. There are two main types of nuclear reactions, one is called fission and the other one is fusion: In Fission reaction it releases a nuclear energy when a …
For polysaccharide extract a. Repeat procedure A. 2a – A. 2d with 10 mL of the polysaccharide extract from Expt. 6 but use 10 drops conc. HCl. B. General Tests for Carbohydrates Test the ff. carbohydrate solutions: 1% glucose, fructose, maltose, sucrose, lactose, agar-agar, gum …
Molecular Geometry I – Investigation using Models (SL) (DCP Lab) Taksh Shah KIS International School Chemistry (SL) 1 Introduction For this investigation we had use molecular models and make the following structures: Symbol Name of Species Lewis Diagram Model Bond Polar or Angle (°) Non-Polar …
Aim: The aim of the Assessment Task 1 is to investigate the effect of 1)temperature, 2)pH and 3)substrate concentration on the action of enzyme such as catalase on hydrogen peroxide. Background knowledge: Enzymes are organic catalysts composed of proteins that assist organisms in facilitating metabolic …
Introduction Flavopiridol, a well-established inhibitor of cyclin-dependent kinases (CDK’s), is currently undergoing clinical trials. The inhibition of CDK’s, which are involved in the cell division cycle, is a vital goal in anticancer agents and therefore having potent drugs which can selectively inhibit these is crucial. …
It is common knowledge that petroleum and petroleum gas (LPG) are good sources of energy. Imagine that petroleum did not exist. This simply means that all the technology that has been developed around petroleum will not be there. To say the least, development in the …
Introduction: ? Neutralization reactions involve the reaction of an acid and a base to produce a salt (ionic compound) and water. Acid + Base ( Salt + Water ? In this lab, sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: …
Introduction: Suspensions are solid dipersion of insoluble or sparingly-soluble drugs, in aqueous like keltrol or oily vehicles such as emulsion. Suspension are used for oral administration, external application to the skin (topical) or parenteral administration.These particles suspended into liquid medium do not dissolve but have …
Results In this experiment we used paper chromatography to determine the amount of chlorophyll a, chlorophyll b, xanthophyll, and beta-carotene in a tube of blended leaf extract. We recorded our findings on the table labeled. Shows the transmittance at each wavelength on a table from …
Abstract This experiment gave a visual understanding of osmosis and diffusion. The first experiment proved that solutes would move down a concentration gradient if permeable to the selective membrane. The second experiment proved different solute concentrations affect the movement of water, depending on the solute …
Relative Reactivity of Alkyl Halides Introduction Nucleophilic substitution of alkyl halides can proceed by two different mechanisms – SN2 and SN1. The purpose of the experiment was to identify the effects that the alkyl group and the halide-leaving group have on the rates of SN1 …
The structural compartmentation of mammalian cells and the differing functions of these compartments. All mammals are eukaryotes and therefore have eukaryotic cells. These cells contain several organelles suited to a specific function they carry out within the cell. These eukaryotic cells contain a Nucleus, Mitochondria, …
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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