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Reil [10]
2 years ago
10

Write a balanced equation for the half-reaction that occurs in the copper half-cell when the cell operates

Chemistry
1 answer:
max2010maxim [7]2 years ago
8 0

Cu (s) → Cu^{+2} (aq) + 2e is the copper half-cell when the cell operates.

<h3>What is half cell reaction?</h3>

A half-cell reaction is either an oxidation reaction in which electrons are lost, or a reduction reaction where electronic are gained.

The reactions occur in an electrochemical cell in which the electrons are lost at the anode through oxidation and consumed at the cathode where the reduction occurs.

Cu (s) → Cu^{+2} (aq) + 2e is the copper half-cell when the cell operates.

Learn more about the half-cell reaction here:

brainly.com/question/11308727

#SPJ1

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How is a hydrogen-1 atom different form a hydrogen-2 atom? How are they similar?
alina1380 [7]
If you’re referring to H vs H2,

H is usually found in ion form as H+

H2 is the designation for pure hydrogen gas, as it is diatomic and can only exist on its own in nature if it’s bonded to another H atom.

In this case, H is an ion and H2 is hydrogen gas

The way you wrote them out, though, indicates that they could be something different. Maybe isotopes? In this case the 1 and 2 are indicative of the amount of neutrons that the atom has.
5 0
4 years ago
How many grams of Cl2 must react to produce 0.0923 mol of AlCl3? Show work.
alexandr402 [8]

First, let's state the chemical reaction:

2Al+3Cl_2\to2AlCl_3\text{.}

We can find the number of moles of Cl2 required to produce 0.0923 moles of AlCl3, doing a rule of three: 3 moles of Cl2 reacted produces 2 moles of AlCl3:

\begin{gathered} 3molesCl_2\to2molesAlCl_3 \\ \text{?moles Cl}_2\to0.0923\text{ moles }AlCl_3\text{.} \end{gathered}

The calculation would be:

0.0923molesAlCl_3\cdot\frac{3molesCl_2}{2molesAlCl_3}=0.138molesCl_2.

And the final step is to convert this number of moles to grams. Remember that the molar mass can be calculated using the periodic table, so the molar mass of Cl2 is 70.8 g/mol, and the conversion is:

0.138molesCl_2\cdot\frac{70.8gCl_2}{1molCl_2}=9.770gCl_2.

The answer is that we need 9.770 grams of Cl2 to produce 0.0923 moles of AlCl3.

3 0
1 year ago
The absolute temperature of a gas is increased four times while maintaining a constant volume. What happens to the pressure of
lianna [129]

Answer:

DECREASE BY A FACTOR OF FOUR

Explanation:

Using pressure equation:

P 1 / T1 = P2 /T2     (at constant volume)

P1 = P

T1 =T

P2 = ?

T2 = 4 T

So therefore;

P2 = P1T1/ T2

P2 = P T/ 4 T

P2 = 1/4 P

The pressure is decreased by a factor of four, the new pressure is a quarter of the formal pressure of the gas.

8 0
4 years ago
What physical property of hydrocarbons is used in fractional distillation
Evgesh-ka [11]
Boiling points.............
8 0
3 years ago
Use complete sentences to differentiate between acids and bases on the basis of touch. Give an example of each type.
stellarik [79]
<h2>Answer:</h2>
  • Acids are sour, gives burning sensation, generally sticky, reacts with metals to produce hydrogen gas.

example: Acetic acid

  • Bases are opposite as they are bitter, generally odorless (except ammonia), they are slippery;

example: sodium bicarbonate

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

6 0
3 years ago
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