• Natural gas is an odorless‚ colorless‚ flammable gas. It is non-toxic and lighter than air. • The gas chiefly consists of methane (CH4)‚ but also contains other hydrocarbons such as ethane‚ butane‚ propane and naphtha. Oil and gas deposits in the North Sea were formed millions of years ago through the decomposition and transformation of organic matter (plant and animal remains). In its primary form‚ natural gas can be used for residential heating and cooking‚ for industrial purposes
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A carbohydrate is an organic compound that consists only of carbon‚ hydrogen‚ and oxygen‚ usually with a hydrogen:oxygen atom ratio of 2:1 (as in water); in other words‚ with the empirical formula Cm(H2O)n. The carbohydrates (saccharides) are divided into four chemical groupings: monosaccharides‚ disaccharides‚ oligosaccharides‚ and polysaccharides. In general‚ the monosaccharides and disaccharides‚ which are smaller (lower molecular weight) carbohydrates‚ are commonly referred to as sugars.
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CONFLICT CAN BE A CATALYST FOR CHANGES For as long as human has existed‚ conflict has been a part of our daily life. Tragedy‚ sadness and many other changes might be some of results due to conflict. It affects all of us although its effect might differ. During a process of conflict‚ our position could have changed if the side we support get weakened. People are likely to switch their ideas‚ feelings and beliefs to other side in order to be inclusive with others. Indeed‚ as the nature of conflict
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Topic essay INTRODUCTION:Archer’s Organic Foods plc - Investment appraisals of two farms 1 I. Introduction Archer’s Organic Foods plc is a producer and distributor of organic foods. The company is looking to expand the business by acquiring a farm in the North of England. This report analyses the financial viability of two farms by using a number of investment appraisal methods. The two farms differ in their initial investments‚ sales and costs. The freehold of option 1 farm will be acquired
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Using the Iodine clock method to find the order of a reaction Introduction When peroxodisulfate (VI) ions and iodide ions react together in solution they form sulfate (VI) ions and iodide. This reaction is shown below: S2O82-aq+ 2I-aq SO42-aq+ I2(aq) The reactants and the sulfate (VI) ions are colourless however the Iodine is a yellow/brown colour. This allows you to measure the progress of the reaction through the colour change when the iodine is produced. In order to determine the order of
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Hypothesis: I hypothesis that the enzyme concentration will affect the rate of reaction but only up until a certain point because there is a limited supply of substrate. Enzymes are protein molecule that acts as biological catalyst by increasing the rate of reactions without changing the overall process. They are long chain amino acids bound together by peptide bonds. Enzymes are seen in all living cells and controlling the metabolic processes in which they converted nutrients into energy and new
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Essay points to concentrate on: - Russian organic market continues to grow‚ which is indicated by the recent statistics compared from 2011 to 2012 that reached $148 million in 2012. A 7.8% growth was indicated since 2011. - The lack of Russian certification system seems to pose a challenge on the expansion of organic food demand in Russia. - In 2015‚ Russian organic food is expected to boom significantly in the future due to the law that is going to be enforced by obtaining the certification
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13. ORGANIC CHEMISTRY IV) ALKYNES SYNOPSIS Alkynes are commonly known as acetylenes. Acetylene is the simplest and important member of the alkyne series. • Alkynes contain – C ≡ C – • General molecular formula of alkynes is CnH2n–2 • Triple bonded carbons are ‘sp’ hybridized and greater s – character is associated with it. • Alkynes will exhibit chain‚ position and functional isomerism. • Their functional isomers are alkadienes and cyclo alkenes. • The minimum number of carbons required to exhibit
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a greater atomic size. An atom with more electron shells is said to have an increased shielding. Example: Potassium (K) is larger than hydrogen (H). This is because potassium has 4 electron shells‚ whereas hydrogen only has 1 electron shell. An alternate way of explaining potassium’s larger size is to say‚ “Potassium has a greater shielding than hydrogen”. The period trend for atomic size is that it decreases across the periodic table‚ from left to right. Sodium is larger than chlorine. This
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Other Names Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Education Advanced Level Examination January 2011 1 2 3 Chemistry Unit 4 Kinetics‚ Equilibria and Organic Chemistry 9.00 am to 10.45 am Wednesday 26 January 2011 CHEM4 4 5 6 7 For this paper you must have: ● the Periodic Table/Data Sheet‚ provided as an insert (enclosed) ● a calculator. TOTAL Time allowed ● 1 hour 45 minutes Instructions
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