Redox Reactions Final Flashcards
(16 cards)
How many electrons are in the valence shell of Cu2+
17
How many electrons are in the valence shell of Zn2+
18, full shell
How many electrons are in the valence shell of C2-
6
How many electrons are in the valence shell of Se-
7
How many electrons are in the valence shell of As3-
8, full shell
Define oxidation
When an element loses electrons in a reaction
Define reduction
When an atom gains electrons in a reaction
What is the oxidizing agent
The oxidizing agent takes electrons from other elements, being reduced.
What is the reducing agent
The reducing agent gives up electrons to other elements, being oxidized
What acronym can be used to remember oxidation and reduction
Loss of
Electrons is
Oxidation
Gain in
Electrons is
Reduction
T or F
Oxidation and Reduction have to happen together
T, how can you have oxidization without the oxidizing agent and vise versa
What is a half cell reaction?
An equation that shows how an element either gained or lost electron(s)
T or F,
If an elements oxidation no. is more negative than how it started than the element has been reduced
True, a negative charge (in redox reactions) signifies a gain in electrons which is reduction
T or F,
If an elements oxidation no. is more positive than how it started than the element has been oxidized
True, a positive charge (In redox reactions) signifies a loss in electrons which is oxidization
Where are electrons in oxidation half cell reactions
The product side
Where are electrons in reduction half cell reactions
the reactant side
