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Oxidation occurs at the anode ("an ox") and reduction occurs at the cathode ("red cat").
See the Web Link to the left for the specific reaction in a dry cell.
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∙ 16y ago
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What is the half cell reaction of ordinary dry cell?
An ordinary dry cell is pretty well answered by: Anode: Zn → Zn2+ + 2e- Cathode: 2NH4+ + 2MnO2 + 2e- → Mn2O3 + H2O + 2NH3
What two materials form the poles in a dry cell?
Zinc and carbon are the two materials that form poles in a dry cell. Zinc anode serves as negative pole and carbon cathode serves as positive pole.
How are wet and dry cells the same?
A wet cell and a dry cell are the same in that they each have an anode, a cathode and and electrolyte. All three components are different chemically. The anode and the cathode will exhibit a voltage difference when placed in the electically conductive electrolyte. The voltage and reaction between the three parts of the cell are chemical reactions. A wet cell is different from a dry cell in that the electrolyte in the wet cell is a liquid where the so-called dry cell has an electrolyte that is either damp, moist or in a gelatinous form. ( The electrolyte is not actually "dry".) Otherwise the cells are the same. The cell may be a primary cell that is depleted as one of the elements is chemically consumed or the cell may be rechargable by reversing the chemical reaction.
What happens if the long leg of LED is conected to a wire coming from the negative end of the dry cell?
The long leg of the LED is the Anode. Connecting the Anode to the negative end of the dry cell would bias the LED off. It would not illuminate. It may also destroy LED.
Explain what a dry cell battery is?
There are two conductors were electricity begins and runs through wires which make energy come out of a battery. <<>> In the center of each cell there is a rod called a cathode. It is usually composed of graphite. Surrounding this cathode there is an electrolytic substance which acts as a medium to conduct electricity. The cathode and electrolytic substance are separated from the outer container by a cardboard tube. This assembly is sealed into a metallic cylinder. In older type batteries this cylinder was made of zinc. This part of the battery is known as the anode. When a load is connected between the cathode (+) and the anode (-) terminals, a chemical reaction takes place between the cathode and the electrolytic material. This chemical reaction generates a 1.5 volt potential between the two terminals.
In a dry cell the carbon rod releases electrons and becomes the positive or negative terminal?
In a dry cell, the carbon rod is the positive terminal, or anode.
What type of energy does a dry cell battery use and how does it work?
Dry cell batteries, like wet cell batteries, use chemical reactions to create positive and negative ions within the battery that then separate out to the cathode and anode sides of the battery, creating a potential difference between the electrodes. The actual term, dry cell, comes from the fact that the chemicals in the battery have minimal moisture added to them, thereby making them "leak-proof" and thus safe for portable devices.
What elements are found in a battery?
- Zinc - Manganese dioxide - Ammonium Chloride - Carbon
What are some examples of a dry cell battery and a wet cell battery?
A dry cell battery is full of solid or paste-like electrolytes. One example of a dry cell is anode, which is a zinc metal. A wet cell battery is full of liquid electrolytes. One example of a liquid cell is an old car battery.
What happens when you disconnected the wire from the dry cell?
when the wire is disconnected from the dry cell you feel not hot
What are the similarities between batteries and fuel cells?
Cathode is positive and anode is negative for both.... we cant say both are not rechargeble ..... but using electricity we cant recharge dry batteries (some) and fuel cells...
What are electrodes made out of?
The positive electrode is a graphite rod (elemental carbon).
