CHY 103 Lecture Notes - Lecture 3: Chemical Equation, Binary Phase, Covalent Bond
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Note: you are not responsible for the section 4. 9. In observing various types of reactions and learning to write net ionic equations we have seen that atoms and molecules may possess various degrees of charge, e. g. iron can be fe (s), fe2+, fe3+ . The ________________________________ is a formal way to keep track of electrons in redox reactions. It assumes that the more electronegative atom in a covalent bond will >take= all the electrons rather than share them. Oxidation: loss of electrons by an atom, molecule, ion, etc. e. g. reduction: gain of electrons by an atom, molecule, ion, etc. Oxidation: loss of electrons by an atom, molecule, ion, etc. e. g. reduction: gain of electrons by an atom, molecule, ion, etc. e. g. 1. The o. n. of an element in its elemental form is zero. The o. n. of a monoatomic ion is the same as its charge. Oxygen in its covalent compounds is 2, except in peroxides, where it is -1.