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ira [324]
3 years ago
13

What is the electrode in the center of the most common dry cell made of?

Chemistry
2 answers:
Svetllana [295]3 years ago
8 0
A common dry-cell battery is the zinc-carbon battery, which uses a cell that is sometimes called the Leclanché cell. The cell is made up of an outer zinc container, which acts as the anode.
ra1l [238]3 years ago
4 0

Answer:

Graphite

Explanation:

An electrode is a solid electric conductor (usually metallic) used in electrolytic cells for carrying electric current. An electrolytic cell is made up of electrodes and electrolytes. There are two types of electrodes

  • Anode - attracts negatively charged ions (anions)
  • Cathode - attracts positively charged ions (cations)

The common dry cell is the transistor battery. The cylindrical coating of this cell is made up of zinc which serves as the anode while the center electrode which is the graphite is the cathode. Graphite is one of the allotropes of carbon and it is a good conductor of electricity.

An electrolyte is a liquid/aqueous solution that allows the passage of electric current. The electrolyte in this cell is usually made up of manganese dioxide (MnO₂),  carbon powder and ammonium chloride (NH₄Cl).

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What is happening when an oxygen molecule is formed from two separate oxygen atoms?
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They share four electrons, two from each oxygen atom
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Answer:

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Explanation:

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8 0
2 years ago
The half-life of gold-198 is 2.7 days. After
Pie

Answer: 8.1 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant = x

a - x = amount left after decay process= \frac{x}{4} 

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{2.7days}=0.257days^{-1}

b) for completion of one fourth of reaction

t=\frac{2.303}{k}\log\frac{x}{\frac{x}{4}}

t=\frac{2.303}{0.257}\log{4}

t=8.1days

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8 0
3 years ago
Which of the following is not true about compounds?
finlep [7]

Answer:

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