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2 The diagram shows the diffusion of hydrogen chloride and ammonia in a glass tube. ... = proton = neutron = electron + ... 4 Hydroxide ions transfer electrons to the cathode. Which statements about the electrolysis of concentrated copper(II) chloride are correct?
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USA Recognition - Cambridge Assessment …
www.cambridgeinternational.orgIntroduction University of Cambridge International Examinations (CIE), is the world’s largest provider of international qualifications for secondary and pre-university …
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www.cambridgeinternational.orgGive non-exact numerical answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless a different level of accuracy is specified in the question. For S , use either your calculator value or 3.142. INFORMATION The total mark for this paper is 104.
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MATHEMATICS - cambridgeinternational.org
www.cambridgeinternational.org0580/02 Cambridge IGCSE – Mark Scheme For examination SPECMEN from 2020 CLES 2017 Page 2 of 10 Generic Marking Principles These general marking principles must be applied by all examiners when marking candidate answers. They should be applied alongside the specific content of the mark scheme or generic level descriptors for a question.
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