GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key IInstructions The final examination will be weighted as follows Modules 1–3 Modules 4–6 The format of the examination will be as follows: Part A: Fill-in-the-Blanks Part B: Multiple Choice Part C: Short Answer Total Marks Include units with all answers as required. Useful Information You will need the following in order to complete this examination: n n n n 15–20% 80–85%
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Preparation and Characterization of Alkene Balacanao‚ Gladys A.1‚ Miranda‚ MarilynI2 1 Student (s)‚ Subject/Section‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; 2 Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology [pic] ABSTRACT The purpose of this experiment is to prepare cyclohexene form cyclohexanol‚ and know the properties of alkene. The first part of this experiment is preparation of cyclohexene
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molecules doesn’t want to be dianion 5. (11 pts) Carey. All the parts of this problem refer to the alkane having the carbon skeleton shown. (a) (2 pts) What is the molecular formula of this alkane? C13H38 (b) (2 pts) What is the IUPAC name? 5-ethyl-2‚6-dimethylnonane 1 pt for or 1 pt for 5-ethyl-4‚8-dimethylnonane 2‚6-dimethyl‚5-ethylnonane (1 pt) How many methyl groups are present in this alkane?____5 (1 pt) How many methylene groups?______5______ (1 pt) How many methine groups?_________3___
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UNICEF PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES January 2008 PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES Why is household water treatment and safe storage an important intervention for preventing disease? Unsafe drinking water‚ along with poor sanitation and hygiene‚ are the main contributors to an estimated 4 billion cases of diarrhoeal disease annually‚ causing more than 1.5 million deaths‚ mostly among children
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at every point where two lines meet. FUNCTIONAL GROUPS Alkanes and Cycloalkanes - An alkane is an acyclic saturated hydrocarbon that contains one or more carbon=carbon double bonds -Functional group: C-C group -General formula: CnH2n+2; n = number of carbon atoms -Structures of branched-chain alkanes are designated using line-angle structural formulas. (Ex. The five constitutional isomers of C6H14) -Cycloalkanes are alkanes that contain a ring of three or more carbons -General Formula
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1 Haloalkanes and Haloarenes IIT-JEE Chemistry Siddhivinayaka Educational Academy Rajendra Nagar Chowk Link Road Bilaspur Ph-07752- 237799/238799 Website : www.bajpaigroup.com. e-mail - info@bajpaigroup.com CHAPTER 23 LEARNINg OBJECTIvES (i) Name haloalkanes and haloarenes according to the IUPAC system of nomenclature from their given structures. (ii) Describe the reactions involved in the preparation of haloalkanes and haloarenes and understand various reactions that they undergo.
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Synthesis of Isopentyl Acetate (Banana Oil) Using a Fischer Esterification Reaction Zhenshu Wang (Stan) TA: Aaron League September 23‚ 2012 Purpose: The purpose of the experiment was to perform the acid-catalyzed Fischer Esterification of acetic acid and isopentyl alcohol to form isopentyl acetate‚ or banana oil‚ which is used in flavor industries. The equilibrium of the reaction was changed by adding an excess amount of acetic acid. The reaction was refluxed and product was purified by extraction
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environment of the main alkanes‚ alkenes‚ alkynes and cyclic hydrocarbons. Procedure: 1. Complete the following table with similarities and differences in hydrocarbons. 2. From the table set examples of compounds in their condensed formula‚ naming them correctly. 3. Search for information about an alkane. Indicate where it comes from‚ its uses‚ effects in the environment and the way we can avoid negative impacts of this compound. Results: 1. HYDROCARBONS Alkanes Alkenes Alkynes Cyclic
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Chapter 5: Solutions‚ Colloids‚ and Membranes Chapter Summary Mixtures and Solutions * A mixture maintains its identity regardless of the proportions of its components. * A mixture can be separated into its pure components through physical separation techniques. * The components are distributed uniformly throughout a homogenous mixture. * The components are not distributed uniformly throughout a heterogeneous mixture. * A solution is composed of a solvent and one or more solutes
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and Applied Chemistry (IUPAC) General Form of IUPAC Nomenclature [branching substituent(s)] Root [Suffix] Rules: 1. Identify the longest continuous chain of carbon atoms. This chain determines the parent name (root) of the alkane. The parent suffix for alkanes is‚ not surprisingly‚ -ane. For chains of equal length‚ pick the one with the most substituents. (Note: I number all possibilities going from left to right – identify the longest chain) 2. Number the chain beginning at the
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