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[DOC File]Chemistry - Redox Notes
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Chemistry - Redox Notes. I. Oxidation - Reduction. A. The terms originated to describe reactions where oxygen was added or removed. 4 Fe + 3 O2 ----- 2 Fe2O3 Oxidation. 2 Fe2O3 + 3 C ----- 4 Fe + 3 CO2 Reduction. B. Today the terms have a broader meaning. 1. Oxidation is the process by which a substance loses one or more electrons.
igcse chemistry revision notes

[DOCX File]iGCSE Revision analysis - Home
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iGCSE Revision analysis. Topic (#/name): Use the electronic versions of past papers by topic available at: www.SmashingChemistry.com Step 1: Answer the questions either by printing them out, or using line paper for your answers. Step 2: Mark your work. Step 3: Save this file
gcse chemistry revision notes

[DOC File]USEFUL VALENCIES, IONS AND FORMULAE FOR GCSE
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METALS ION = +1 ION = +2 ION = +3 VALENCY OF 1 VALENCY OF 2 VALENCY OF 3 Li lithium Mg magnesium Al aluminium Na sodium Ca calcium Fe iron (III) K potassium Ba barium Cu copper (I) Fe iron (II) Ag silver Ni nickel Cu copper (II) H hydrogen * Zn zinc NH4 ammonium * Pb lead (II)
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[DOC File]Balancing Equations Notes:
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Balancing Equations Notes: Chemical equations . must. be balanced on both sides according to the Law of Conservation of Mass, which says that matter cannot be created or destroyed. Therefore, atoms that are present on one side of the equation must be present on the other side as well. Example:
igcse chemistry revision

Igcse chemistry notes pdf