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Single displacement
________ (replacement) reactions: redox reactions in which an ion in solution is displaced (or replaced) via the oxidation of a metallic element.
Reduction
________: gain of electrons.
Balance charge
________ by adding electrons.
The sum of the oxidation number in a polyatomic ion equals
the charge on the ion.
The sum of the oxidation numbers for all atoms in a molecule must be
zero.
Oxidation number
________ (or oxidation state) of an element in a compound: the charge its atoms would possess if the compound was ionic.
Oxidation
loss of electrons
Reduction
gain of electrons
Reducing agent
is oxidized; LOSES electrons, and its charge goes up
Oxidizing agent
is reduced; gains electrons, and its charge goes DOWN
Oxidation number (or oxidation state) of an element in a compound
the charge its atoms would possess if the compound was ionic
Single-displacement (replacement) reactions
redox reactions in which an ion in solution is displaced (or replaced) via the oxidation of a metallic element
Write the two individual half-reactions
the oxidation and the reduction
Note
Flashcard