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Chemical changes
Metals reacting
Oxidation and Reduction in Terms of Electrons
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Cards (9)
Oxidation
Loss
of
electrons
Reduction
Gain
of
electrons
Magnesium atom forming magnesium ion
Mg2
+
1. Magnesium atom
loses
electrons
2. Magnesium atom is
oxidized
Sulfur
atom forming
sulfide
ion
1.
Sulfur
atom
gains
electrons
2. Sulfur atom is
reduced
Aluminium atom forming aluminium ion
1. Aluminium atom loses
3
electrons
2. Aluminium atom is
oxidized
Oxygen atom forming oxide ion
1.
Oxygen
atom gains 2 electrons
2. Oxygen atom is
reduced
Zinc reacting with copper sulfate
Zinc is
oxidized
Copper is
reduced
Half
equations show
oxidation
and reduction of individual atoms/ions
Symbol equations show overall
oxidation
and
reduction
in a reaction