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3 years ago

Which half reaction is most easily reduced?

2 answers:

8 0

Thank you for posting your question here at brainly. Among the choices provided the answer should be <span>Br2 + 2e− → 2Br− = 1.07 V.

I hope the answer will help. Feel free to ask more question. </span>

GuDViN [60]3 years ago

7 0

Answer;

Br2 + 2e− → 2Br− = 1.07 V

Explanation;

-Oxidation is the loss of electrons while reduction is the gaining of electrons. Reducing agent undergoes oxidation while oxidizing agent undergoes reduction.

- In the above question, bromine is the strongest reducing agent because it has the highest positive value of an emf. Zinc ion on the other hand is the strongest oxidizing agent since it has the highest negative emf.

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What is cerium’s common molecule name?

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Explanation:

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2 years ago

Simple Chem question - help!

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3 years ago

One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transition that begins in the state w

4vir4ik [10]

Answer:

Explanation:

Relationship between wavenumber and Rydberg constant (R) is as follows:

$wave\ number=R\times Z^2\frac{1}{n_1^2} -\frac{1}{n_1^2}$

Here, Z is atomic number.

R=109677 cm^-1

Wavenumber is related with wavelength as follows:

wavenumber = 1/wavelength

wavelength = 253.4 nm

$wavenumber=\frac{1}{253.4\times 10^{-9}} \\=39463.3\ cm^{-1}$

Z fro Be = 4

$39463.3=109677\times 4^2(\frac{1}{n_1^2} -\frac{1}{5^2})\\39463.3=109677\times 16(\frac{1}{n_1^2} -\frac{1}{5^2})\\n_1=4$

Therefore, the principal quantum number corresponding to the given emission is 4.

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3 years ago

Amphiphilic molecule: ___________

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The answer is E - have both hydrophilic and hydrophobic groups.

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3 years ago

Once the sun's energy reaches the earth's atmosphere through radiation, it is circulated within the atmosphere and oceans throug

Levart [38]

B) convection

Explanation:

Once the sun's energy reaches the earth's atmosphere by radiation, it is circulated within the atmosphere and oceans through convection.

The energy of the sun on earth is moved between the ocean and the atmosphere by air around us.

Heat transfer in fluids is by convection.
It involves the actual motion of the particles of medium from one place to another due to differences in temperature and density.
Air close to the surface of the ocean is less dense and hot due to high temperature.
The air rises and it is replaced by colder air masses.
This exchange leads to the development of convective cells.
This moves the energy of the sun between the atmosphere and the ocean surface.

learn more:

Radiation brainly.com/question/1140127

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3 years ago