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Summary AQA GCSE Chemistry Triple: Energy changes

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This is a revision powerpoint I used to revise for my GCSE exams. Filled with content from the specification, exam tips, questions, quizzes, animations, useful links, diagrams,resources and everything in between in order for you to pass your exams! Also includes information for the required practicals

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Institution
GCSE
Module
Science

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Energy
changes

Chemistry chapt

,Exam question notes
Bond energy = reactants – products
(-) numbers are exothermic as energy is released into the
surroundings
Questions that ask you to describe why something is exothermic o
endothermic always talk about bond making and breaking

,Energy
Energy is needed to break bonds
Energy is released when making bonds

, Exothermic
Energy needed to break bonds is less then energy released when
products are formed
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Lawrie Ryan, Lawrie Ryan AQA GCSE Chemistry Student Book
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  • 9780198359388
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Chapter 7
Uploaded on
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Number of pages
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Written in
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Type
SUMMARY

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