2 I-131 decays in a first order process, so the half-life is constant and doesn’t depend on concentration. b You should get the same half-life each time – approximately 180 s. c 0.010 65 s–1 d In the rate-determining step, A splits up.Įdexcel A2 Chemistry Answers to questions in Student Book page 23 1 a Have an excess of methanoic acid. It would be hard to determine if the graph was truly a straight line from two points.Ī rate = k b The graph of rate versus concentration should be a straight line showing that it is first order. 2 a1 b2 c3 d Rate = k2 e 9.15 x 10–5 mol–2 dm6 s–1Įdexcel A2 Chemistry Answers to questions in Student Book page 19 1 If there is too much thiosulfate, the solution will not change colour, or will take a very long time to change. b The gas syringe little of the gas would collect in the measuring cylinder method.Įdexcel A2 Chemistry Answers to questions in Student Book page 15 1 The mixture will not change colour until all the thiosulfate has reacted with iodine. Hydrogen has a very low density there would be little change in the mass of the reaction vessel.Ī The gas syringe. 2Ī Collect the hydrogen in a gas syringe. b Warm the mixture but not too much (about 35 ☌). This book write and You can DOWNLOAD or READ ONLINE Edexcel A Level Chemistry Student Book 2įor free, now Click The DOWNLOAD button to get the EBOOK link.Edexcel A2 Chemistry Answers to questions in Student Book page 13 1 a Put the milk in a fridge. You just downloading and save it on the device that you have.But previously to first select which format according to the device you have, so that theEdexcel A Level Chemistry Student Book 2 PDF Online book you can read directly from your device.Or if your device not yet supports formats available, you can read a Edexcel A Level Chemistry Student Book 2 PDF Kindle book directly from this website through the device you have.Read Edexcel A Level Chemistry Student Book 2PDF Online get this book immediately from this website.Edexcel A Level Chemistry Student Book 2HOT PROMO free trial for 30 daysEdexcel A Level Chemistry Student Book 2 DownloadEdexcel A Level Chemistry Student Book 2Full Book.Are you ready to Read Online or DOWNLOADEdexcel A Level Chemistry Student Book 2?For all of you who want to get the PDF Edexcel A Level Chemistry Student Book 2 eBook in PDF, Ebook, ePub, Kindle and Mobi.You can click on download link below!!!In this website the Edexcel A Level Chemistry Student Book 2Edexcel A Level Chemistry Student Book 2, 7th Edition PDF Download book we provide free for you all.

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