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Mar 8, 2021 · This is a collection of free chemistry worksheets and handouts to print. Most of the printables are PDF files, although some are available as JPG or PNG files. All of these worksheets print cleanly on normal printer paper, plus you can resize them to fit your needs.
Circle the correct answers. The bonds between the atoms of the reactants / products need to be broken first, this is an endothermic / exothermic process.
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5070 Chemistry November 2020 Principal Examiner Report for Teachers © 2020 CHEMISTRY Paper 5070/21 Theory Key messages • Some candidates confused ideas about chemical equilibria and rate of reaction. Some used collision theory when answering questions about chemical equilibria.
Plan an experiment to test the hypothesis “the higher the temperature, the faster the rate of reaction”. Measure the rate of reaction by adding a set amount of metal to set type, volume and concentration of acid and time how long it takes to stop fizzing. Repeat the experiment at 5 different temperatures. Determine.
© Cambridge University Press 2014 IGCSE ® Chemistry Worksheet 7.7 1 Acid and thiosulfate reaction When a sodium thiosulfate solution (Na 2S2O 3(aq)) is added to hydrochloric acid, sulfur is formed. 1 What would you observe during the reaction? How could you set up the experiment to measure the reaction
Chemistry_(Tro) unit 1: The Science of Chemistry (Pages 6–18) 1. Define chemistry as a science and explain how it is useful and relevant to everyday life. 1.1 2. Define and distinguish the major components of the “scientific approach to knowledge”: observations, hypothesis, experiments, scientific law, and theory. 1.3–1.4 3.
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Past papers, summary notes and past exam questions by topic for AQA, CIE, Edexcel, OCR and WJEC Chemistry A-levels, International A-levels, GCSEs and IGCSEs.
