5.1-5.3 Redox reactions and Oxidation and reduction
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Last updated 6:35 AM on 7/26/22
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11 Terms
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Reduction
________ is a reaction in which an element, ion or compound gains electrons.
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Copper ions
________ have been reduced as the oxidation state has decreased from +2 in Cu2+ to 0 in Cu and they have gainedelectrons:
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Aluminium
________ in a compound usually has the oxidation state +3.
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II
Iron can form ions with a 2+ charge, called iron (________) ions or a 3+ charge, called iron (III) ions.
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Roman numeral
The ________ is the oxidation state of the element.
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Transition elements
________ can bond in different ways by forming ions with different charges.
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Oxidation
________ is a reaction in which an element, ion or compound loses electrons.
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iron
When ________ reacts with oxygen to form ________ oxide, the formula depends on the oxidation state of the ________ ions.
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Gain of electrons
Oxidation is Loss of electrons Reduction is ________.
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Reduction
________ is gain of electrons, loss of oxygen.
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Oxidation
________ is the loss of electrons, gain of oxygen.
