reactions‚ a tertiary alcohol‚ such as 2-methyl-2-butanol is most favorable for the reaction because when the leaving group leaves‚ it will leave a + charge on the carbon it was attached to‚ and a tertiary carbocation is the most stable. Another important requirement for a Sn1 reaction is a weak nucleophile attack group. Hydrochloric acid is a weak group because it has no negative charge‚ and works well for the reaction. Reaction for formation of 2-chloro-2-methylbutane The goal of this experiment
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should always try and observe the manners (adab) of Islam such as courtesy‚ politeness‚ friendliness‚ helpfulness and the likes when we carry out our duties. By this‚our work be on the right step. In the same time it becoming an act of ibadah. It is important that we carry out our duties by abiding the adab as set forth by islam. * If we want to do well‚ we can not use the way that can cause good way turned into disrepute. As such‚from Islamic perspective‚the Robin Hood approach of “robbing the rich
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Keghan Chapter 8 MULTIPLE CHOICE QUESTIONS Topic: Structure Elucidation 1. An alkene adds hydrogen in the presence of a catalyst to give 3‚4-dimethylhexane. Ozonolysis of the alkene followed by treatment with zinc and acetic acid gives a single organic product. The structure of the alkene is: CH3 A) CH3CH=C-CHCH2CH3 (cis or trans) CH3 CH3 B) CH3CH2C=CCH3 (cis or trans) CH2CH3 C) CH3 CH2=CCH2CHCH2CH3 CH3 CH2 D) CH3CH2CCHCH2CH3 CH3 CH3 E) CH3CH2CHCHCH=CH2
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FINAL SUMMATIVE PRESENTATIONS This evaluation will involve working in groups of 3 to prepare a written report‚ poster and a demonstration of food preparation of your chosen topic. PART A: WRITTEN REPORT This should give the reader background information on your selected topic. This information will be shared with the class as an ongoing commentary in addition to your demonstration. The report will be typed using proper report format with a title page and subheadings. It should
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solution which ions will be the first to be discharged at the cathode. Write the equation for the cathode reaction. Ans.: - Mg2+ Q.4. An electrode ‘A’ is connected to the positive terminal of a battery and electrode ‘B’ to the negative terminal. (i) Give the names of the electrodes A & B. (ii) Which electrode is the oxidizing electrode. Ans : - (i) A – Anode‚ B – Cathode. (ii) A. Q. 5. State the appropriate term used for : – A liquid or solution‚ which conducts electricity with accompanying chemical
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Data-based questions Study the photos below and answer the following questions. Photo A Photo B Photo C (a) What are industries shown in photos A‚ B and C respectively? (3 marks) (b) Draw a diagram to illustrate the manufacturing system of the industry shown in photo A. (4 marks) (c) Describe and explain the characteristics of these three industries. (i) Photo A (3 marks) (ii) Photo B (3 marks) (iii) Photo C (in tradition) (3 marks) (d) How do personal factors affect
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halves of a Petri dish on the projection stage of an overhead projector. Pour enough sodium sulfate solution into each half of the Petri dish to just cover the bottom of each half dish. 2. Add 2–3 mL of universal indicator to each solution to give each a rich‚ transparent green color. 3. Break a pencil lead in half. Attach the leads to opposite sides of the Petri dish bottom with the alligator clips. Make sure the tip of each lead is submerged in the green solution and the alligator
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CELL STRUCTURE CELL THEORY: Structural and functional unit of all living things New cells arise from already existing cells Cells contain information that instructs growth. This information can be passed onto new cells. MICROSCOPES: There are two main types of microscopes: Light and Electron Electron Micrographs- shown in colour LIGHT ELECTRON Uses beam of light Magnification = x1500 Resolution = 200 nm Wide range of specimens can be used Samples are fairly quick + easy to prepare
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Sustainable Chemistry Terry Collins* Chemistry has an important role to play in achieving a sustainable civilization on Earth. The present economy remains utterly dependent on a massive inward flow of natural resources that includes vast amounts of nonrenewables. This is followed by a reverse flow of economically spent matter back to the ecosphere. Chemical sustainability problems are determined largely by these economy-ecosphere materials flows (see the figure‚ below)‚ which current chemistry education
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12U Equilibrium Unit Test Multiple Choice K/U Identify the letter of the choice that best completes the statement or answers the question. ____ 1. When solid lead(II) phosphate is in equilibrium with its ions‚ the ratio of lead(II) ions to phosphate ions is which of the following? a. 1:1 d. 2:3 b. 1:2 e. 3:2 c. 2:1 ____ 2. In a saturated solution of silver phosphate‚ the concentration of silver ion is 4.5 10-4 mol/L. The Ksp of silver phosphate would be which of the following
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