Mark Scheme (Results) Summer 2012 International GCSE Chemistry (4CH0) Paper 1C Science Double Award (4SC0) Paper 1C Edexcel Level 1/Level 2 Certificate Chemistry (KCH0) Paper 1C Science (Double Award) (KSC0) Paper 1C Edexcel and BTEC Qualifications Edexcel and BTEC qualifications come from Pearson‚ the world’s leading learning company. We provide a wide range of qualifications including academic‚ vocational‚ occupational and specific programmes for employers. For further information‚
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Hindustan Unilever Limited (HUL) (BSE: 500696) is India’s largest consumer goods company based in Mumbai‚ Maharashtra. It is owned by the British-Dutch company Unilever which controls 52% majority stake in HUL. Its products include foods‚ beverages‚ cleaning agents and personal care products. HUL’s approach for a greener planet Climate change will have a growing impact on Unilever’s business. Our suppliers of agricultural raw materials will be affected by changing weather patterns. Our consumers
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primarily from the sun. It generally enters the system through photosynthesis‚ a process that also captures carbon from the atmosphere. By feeding on plants and on one another‚ animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter‚ decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back
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Molecular Biology 344 fall 2012 A Johnson Due 9/11/12 as hard copy at the beginning of lecture Problem Set 1 1. Look carefully at the structures of the two molecules shown below. a. What would you expect to happen if you added ddCTP (shown in a) to a DNA synthesis reaction in vitro in large excess over the concentration of deoxycytidine triphosphate (dCTP)? How will this affect the pattern of bands on the sequencing gel? The ddCTP lacks the OH‚ which is required for elongation
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Write your solutions using the hints below each question when you need. 1. Write an interactive program that will prompt to the user for 3 integers and calculate the mean. Then‚ the program will print out the mean. [You need to include comments in the program.] public class MeanFunction { public static void main (String[] args) { int a; int b; int c; double x; System.out.println("Give me three integers"); a = In
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mechanisms that regulate cellular senescence‚ organismal ageing‚ and species-specific lifespan depend on a synergy of pathways that are multifactorial and extremely complex‚ though not yet completely understood. Recently‚ the development of new molecular techniques has elucidated‚ at least in part‚ the primary pathways involved in ageing. In parallel with the search to uncover the factors that control ageing is the endeavor to discover methods of extending lifespan‚ in hopes of living both youthfully
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Composition and Molecular Formula Worksheet 1. What’s the empirical formula of a molecule containing 65.5% carbon‚ 5.5% hydrogen‚ and 29.0% oxygen? 2. If the molar mass of the compound in problem 1 is 110 grams/mole‚ what’s the molecular formula? 3. What’s the empirical formula of a molecule containing 18.7% lithium‚ 16.3% carbon‚ and 65.0% oxygen? 4. If the molar mass of the compound in problem 3 is 73.8 grams/mole‚ what’s the molecular formula? Write the molecular formulas of the
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Megan Adkins-Blanch 11/10/14 TA: David Stephens CHE 3652-003 Aldol Condensation: 4-methoxychalcone Abstract: To synthesize 4-methyoxychalcone. Reaction Mechanism: Table: Compound Molecular Weight (g/mol) Density (g/mL) Boiling Point (°C) Melting Point (°C) Amount used (g‚ mL‚ etc.) Acetophenone 120.16 1.03 201.7 19.7 1 ml 95% ethanol 46.07 0.8 79 -114 50% NaOH 40.2 1.53 140 12 Anisaldehyde 136.16 1.12 248 -1 1 ml Structures: Acetophenone: 95% ethanol: 50% NaOH: Anisaldehyde: MSDS:
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The United States has become a melting pot of many ethnic cultures. The diversity of these differing cultures abounds in families‚ communities‚ private and public organizations; and benefits our society with an increased cultural awareness and engagement‚ which has decreased stereotyping and decreased discriminatory practices on the basis of being different (Wilson‚ 2014). According to Manning & Curtis (2012)‚ diversity is about all person’s being accepted and respected and being able to believe
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NAME:__________________________________ STUDENT#:______________________________ YORK UNIVERSITY FACULTY OF SCIENCE AND ENGINEERING SC/BIOL 3130N (3.0) – MOLECULAR BIOLOGY II MIDTERM I – January 31st‚ 2012‚ VERSION A INSTRUCTIONS: 1) Please sign the sign-in sheet that will be circulated during the exam. 2) Multiple choice – 12 questions‚ one mark each. Choose the best single mostcorrect answer and fill in all answers on the scantron sheet provided. Questions where more than one answer is selected
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