List four possible haloalkanes that can be formed from this reaction. [4 marks] [TOTAL: 25 marks] 2. C5H12 is an alkane. It can be present in three different forms of constitutional isomers. a) Name and draw the three constitutional isomers of C5H12. [6 marks] b) Describe the reaction steps of C5H12 when it reacts
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is being tested and analyzed 2. We are using sight and touch 3. Independent= petroleum jelly Dependent= the balloon 4. Controls= Petroleum jelly Constant= the cellophane tape and a sharp pin Pre-Lab Questions for 2nd part of Lab: 1. The balloon is being tested and analyzed 2. We used sight as our scientific skills 3. Independent: the pin Dependent: the balloon 4. Control(s)= cellophane tape Constant= the air in the balloon Procedures and Observation: Procedures:
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Personal Statement The decision to study a Masters degree in Chemistry at university stemmed from my studies of chemistry at GCSE. As someone who is naturally inquisitive‚ I have found that chemistry is a subject which seems to explain the world around me. This interest in chemistry has been encouraged by frequent visits to the Heart Hospital in London from a young age. Through this‚ I have developed a particular interest in the workings of medical equipment‚ especially learning about the theory
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Abstract The separation of a Fe3+ and Ni2+ mixture was firstly investigated; followed by the determination of the Fe3+ and Ni2+ content (concentration) in the original mixture. It was found that iron was a yellow solution and nickel respectively had a greenish colour. Their original concentrations respectively were 0.03669 M for iron and 0.03159 M for nickel. Introduction Ion exchange materials are insoluble substances containing loosely held ions which are to be exchanged with other ions in
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c. assumes the shape of its container d. easily compressible 3. Which of the following is not a physical property of sucrose? a. solid at room temperature b. decomposes when heated c. dissolves in water d. tastes sweet 4. Which of the following is typically in a different physical state than the other three at room temperature? a. salt b. sugar c. flour d. water 5. Complete the following table. |Physical State |Definite Shape?
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Table 1 Vinegar - 3 - 2.2 Sodium BiCarbonate Solution - 9 - 8.3 Lemon Juice - 4 - 2 Laundry Detergent - 8 - 8.2 Bleach - 12 - 12.0 Ammonia - 12
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Lecture 12 Chapter 6 6.1 Thermochemistry: Energy & units (p.227) From observation we know‚ that - some chemical reactions begin as soon as the reactants come into contact with each other (precipitation reactions) - some reactions are slow or even so slow at room temperature that even lifetime is not enough to observe a measurable change (rusting of iron‚ tarnishing silver) Also‚ almost all chemical reactions involve exchange of heat (or energy): in combustion reactions
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Narrative Planner—“The Pomegranate Seeds” Who? Describe the character whose story you plan to tell. Character Name: How would you describe this character? Why? Physical Appearance Gloomy but handsome. He was gloomy because he was very lonely in his dominion. Feelings Very sad and lonely Because he has been by himself for so long he has grown tired of it. Attitude Desperate‚ and sad He really wants Proserpina to live with him and so far he is not succeeding. What? Conflict Character
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stronger than a Vander Waals forces‚ but weaker than ionic and covalent bonds. 3.2 List FOUR properties of ionic compounds. 1. High melting point: 800°C 2. They form crystals 3. Non-conductive in its solid state 4. They have higher enthalpies of fusion and vaporization than
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Data and Observations : Part I: Insert a complete data table‚ including appropriate significant figures and units‚ in the space below. Also include any observations you made over the course of Part I. Metal Aluminum Zinc Iron Cooper Mass of metal 27.776 g 41.664 g 34.720 g 41.664 g Volume of water in calorimeter 26.0 mL 26.0 mL 26.0 mL 26.0 mL Initial temp. of water in calorimeter 25.3 degrees C 25.3 degrees C 25.3 degrees C 25.3 degree’s C Temp of hot water and the metal
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