The equations represent redox reactions. In which equation is the underlined substance acting as a reducing agent? A CaO + H2O → Ca(OH)2. B ...

Questions and model answers on Redox for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams.

Questions. Core curriculum. 1 If a substance gains oxygen in a reaction, it has been oxidised. If it loses oxygen, it has been reduced.

Summary notes, flashcards and past exam questions by topic for CAIE IGCSE Chemistry Topic 6 - Chemical Reactions.

An example of a redox reaction is shown. Zn + Cu2+ → Zn2+ + Cu. Which statement about the reaction is correct? A Zn is the oxidising agent and it oxidises ...

Cambridge IGCSE Chemistry – past and specimen paper questions and answers. Redox, electrochemistry and Group VII. CORE questions. Page 2. 114 v1 4Y11. Cambridge ...

Оценка 3,7 (3) This document is a redox practice worksheet containing 31 multiple choice questions about oxidation-reduction concepts and reactions.

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28 июн. 2010 г. · Chapter 20 Worksheet: Redox ANSWERS. I. Determine what is oxidized and what is reduced in each reaction. Identify the oxidizing agent and the ...

REDOX REACTIONS - in a reaction overall, oxidation and reduction must go together. (g) Redox reaction analysis based on the oxygen definitions.