CARIBBEAN EXAMINATIONS COUNCIL Caribbean Secondary Education Certificate CSEC® CHEMISTRY SYLLABUS Effective for examinations from May–June 2015 CXC 21/G/SYLL 13 Published by the Caribbean Examinations Council. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means electronic, photocopying, recording or otherwise without prior permission of the author or publisher. Correspondence related to the syllabus
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Introduction to Chemistry I (MAE1106) Chapter 1: Properties, Measurement and Units Matter: All things we can see, or touch, whether books, pencils, telephones, or people as they have some thing in common. They are all composed of matter which is defined as anything that takes up space and has mass. Matter is generally considered to be a substance (often a particle) that has rest mass and (usually) also volume. Mass and weight are not really the same. The mass of a body is a measure of its
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paper, leaving the residue on the impermeable substance/filtrating medium and the filtrate to pass through. | Dissolved solids in liquids Evaporation | If the liquid in the mixture is more volatile (boiling point is lower) than the soluble solid, the soluble solid will remain while the liquid evaporates. The procedure employs the use of an evaporating dish and a Bunsen burner. | Crystallisation | Another method of dissolved solids from a liquid mixture (solution)The impure salt is dissolved
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Physical Chemistry Understanding our Chemical World Physical Chemistry Understanding our Chemical World Paul Monk Manchester Metropolitan University, UK Copyright 2004 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be
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Chem I Chapter 8 Matching Match each item with the correct statement below. a. | coordinate covalent bond | d. | single covalent bond | b. | double covalent bond | e. | polar bond | c. | structural formula | f. | hydrogen bond | ____ 1. a depiction of the arrangement of atoms in molecules and polyatomic ions ____ 2. a covalent bond in which only one pair of electrons is shared ____ 3. a covalent bond in which two pairs of electrons are shared ____ 4. a covalent bond
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Sodium is so reactive it can ignite on contact with water forming sodium hydroxide which is highly irritating to skin, eyes, nose and throat. This can cause coughing and sneezing but very intense exposures can result in difficult breathing, and chemical bronchitis. Contact to the skin may cause itching, tingling, and permanent damage due to burns. Contact with eyes may result in permanent loss of sight. So because of this it has to be kept in a moisture free environment. Titanium, sodium peroxide
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PAY DE FRESA CON CREMA Ingredientes 190 gramos de queso crema 1 taza de azúcar 3 cucharitas de crema ácida 1 pieza de base para pay 1/2 kilogramo de fresa Preparación: Batir el queso crema con 3/4 de taza del azúcar. Agregar la crema. Colocar el queso batido y endulzado en la base del pay. Colocar las fresas partidas sobre el queso. — PAY DE FRESAS CON CREMA (2 fotos) ------------------------------------------------- ------------------------------------------------- -------------------------------------------------
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[pic] “To Study the Current Market Scenario and the Future Prospect of Leather Chemical Industry of Bangladesh” Internship Report Submitted To: MR. AZMAL HOSSAIN Executive Director ACI Trading Limited. Submitted By: Mohammad Tawhid Reaz Internee, ACI Trading Limited. [pic] A D V A N C E D C H E M I C A L I N D U S T R I S L I M I T E D 245, Tejgaon Industries Area, Dhaka- 1208. Date: 25 June, 2006. June 24, 2006 Mr. Golam Mohammed Chowdhury
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GRAIN BASED DISTILLERY OPERATION : 86 KLPD WATER BALANCE ALL FIGURES IN METRIC TONNES (MT) INPUTS PROCESS WATER IN LIQN BOILER FEED WATER DM WATER for DISTILLATION SOFT WATER for COOLING TOWER DM WATER BLENDING RW for BOTTLE WASHING SOFT WATER DISTILLATION SOFT WATER PUMPS SEALING FERMENTER WASHING FLOOR WASHING DOMESTIC CONSUMPTION OUTPUTS 473 533 659 774 50 65 129 129 22 20 5 MT MT MT MT MT MT MT MT MT MT 2860 RECYLCE STREAMS STEAM CONDENSATE THIN SLOPS R/E to DISTILLATION PR
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CHEMICAL EQUILIBRIUM Equilibrium occurs when the rate of the forward reaction is equal to the rate of reverse reaction. Concentration of the reactants and the products remain the same. Dynamic equilibrium occurs when the processes do not stop and forward and reverse reactions still continue in both directions at the same rate. A homogeneous reaction is a reaction wherein all the reactants and products are in the same phase e.g. all are gases. A heterogeneous reaction is a reaction wherein
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