topic 4: redox Flashcards

1
Q

define reduction

A

a gain in valence electrons by a reactant in any reaction

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2
Q

define oxidation

A

a loss in valence electrons by a reactant in any reaction

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3
Q

define a reducing agent

A

a substance that donates electrons to another reactant. as the reducing agent does this it loses electrons so its oxidised

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4
Q

define an oxidising agent

A

a substance that takes electrons from another reactant. as the oxidising agent does this it gains electrons so its reducing

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5
Q

definition of a standard solution

A

a solution of accurately known concentration

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6
Q

in a redox reaction what happens at the same time

A

reduction and oxidation

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7
Q
A
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