Transcription of Chemistry - PapaCambridge
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Chemistry - PapaCambridge
Cambridge IGCSE ChemistryRevision GuideRoger NorrisUniversity Printing House, Cambridge CB2 8BS, United KingdomCambridge University Press is part of the University of Cambridge. It furthers the University s mission by disseminating knowledge in the pursuit of education, learning and research at the highest international levels of Information on this title: Cambridge University Press 2015 This publication is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University published 2015 Printed in the United Kingdom by Latimer TrendA catalogue record for this publication is available from the British LibraryISBN 978-1-107-69799-7 Paperback Cambridge University Press has no responsibility for the persistence or accuracy of URLs for external or third-party Internet websites referred
impure substance by differences in melting points and boiling points. Progress check 3.01 A solid melts between 234–240 °C. Is this solid likely to be pure or impure? Give a reason for your answer. [1] 3.02 Why should zinc oxide used in creams to treat sunburn be pure? [1] 3.03 Explain why salt is spread on roads in icy weather. [3] 3.02 ...
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