WebAdditional Science / Chemistry CH2FP . Mark scheme . 4408 / 4402 . June 2015. Version/Stage: 1.0 Final . Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments WebExam-style Questions: Extraction of Metals. The diagram below shows the blast furnace: a) Complete the labels A, B and C. (3 marks) b) What are the main waste gases from the …
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WebAlkenes are unsautrated hydrocarbons & are made by cracking long chained alkanes. Unsaturated means that one pair of Carbon atoms are joined together by a double … WebGCSE Chemistry (Single Science) Using resources learning resources for adults, children, parents and teachers. blue house grey roof
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WebQuestion Bank is a free tool which allows you to create practice question papers from thousands of WJEC past paper questions. Find the questions you need, add them to your paper and export your paper with accompanying mark scheme and examiner's comments as a PDF ready to use in the classroom. We are currently creating a new and improved ... WebAlkenes are unsautrated hydrocarbons & are made by cracking long chained alkanes. Unsaturated means that one pair of Carbon atoms are joined together by a double covalent bond (C=C).. The types of reactions alkenes undergo is called addition.This reaction can happen in two ways. Firstly, if the alkene is reacted with bromide water - Br2 (aq).Bromide … WebWhat does QWC mean? Muppet Science. 14. Like the title says, what does it mean. Just stumbled upon it on a chemistry paper and I have no idea what it means lol Cheers muppet Science. 0. Report. reply. Reply 1. 11 years ago. ElMoro. 18. Quality of Written Communication Grammar, spelling, punctuation and stuff like that (edited 11 years ago) 1. blue house gallery schull