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The MnO2 would like to take electrons from the Zn much the same way that a bully would like to take someones lunch money. The problem for MnO2 is that it is not touching the Zn. The MnO2 is touching the graphite electrode and is trying to pull off the graphite electrons. Graphite is tougher than Zn and will not give up electrons but there is a tug. The graphite makes the positive electrode of the cell.
On the Zn side, the Zn is the electrode and the electrons are not held very well by Zn. So the Zn electrode has pressure of electrons wanting to leave and the graphite electrode has suction that wants more electrons. The pressure difference can be measured as 1.5 volts. Volts are used to measure electrical pressure.
When a light bulb or something is connected then electrons from the Zn electrode have a path to go to the graphite electrode. The graphite is willing to give electrons to MnO2 because it can get them back from the Zn through the circuit.
Also when the Zn electrode loses 2 electrons a Zn atom turns into an ion and dissolves in the electrolyte. Because of its positive charge it is attracted to the correspondingly formed negative charge at the graphite when MnO2 took an electron.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agolemmings and lemons. and some hummus.
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Which of the following best describes a galvanic cell?
A Spontaneous Redox Reaction
How does a galvanic cell work?
.. A redox reaction at two electrodes causes electrons to flow.
What drives a galvanic cell?
A Spontaneous Redox Reaction
How does wood that is not burning differ from a non flammable material?
Cellular oxidation is part of cellular respiration. Cellular respiration is the set of the metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions that involve the redox reaction.
What is the starting material of glycolysis?
in glycolysis beginning material is 1 mol. of glucose and ending material is 2mol. pyruvate.
Which best describes a galvanic cell a battery containing a non spontaneous reaction a battery containing an acid and a base a battery containing a spontaneous redox reaction a battery that requires?
spontaneous redox reaction
A single reaction where oxidation and reduction take place is called?
a redox reaction
Is browning banana a redox reaction?
A browning banana is a redox reaction.
Are single displacement and double displacement reactions always redox reactions?
A single displacement reaction is always a redox reaction, buta double displacement reaction is not a redox reaction.
How can you tell for sure that a redox reaction has happened?
if oxidation states change, it is a redox reaction
How can a galvanic cell become an electrolytic?
the redox reaction is reserved
A single-displacement reaction is always a redox reaction but a redox reaction isn't always a single-displacement reaction.?
This is true -APEX
A single displacement reaction is always a redox reaction but a redox reaction isnt always a single displacement reaction?
false true
Is a redox reaction always a single-displacement reaction but a single-displacement reaction isn't always a redox reaction?
This is true -APEX
Is Zn plus CuCl2 yields ZnCl2 plus Cu a redox reaction?
This is a redox reaction.
What happens to a redox reaction when is shown as a half reaction?
The redox reaction is split into its oxidation part and it’s reduction part
What happens to a redox reaction when it is shown as half reaction?
The redox reaction is split into its oxidation part and it’s reduction part
