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3 years ago

Is it easier to make that change with weak or strong molecular attraction?

Chemistry

1 answer:

Gnom [1K]3 years ago

8 0

Answer:

Strong molecular attraction chlorine and the hydrogen connect.

Explanation:

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The halogens form a series of compounds with each other, which are called interhalogens. Examples are bromine chloride (BrCl), i

aleksley [76]

Answer:

Chlorine fluoride is expected to have the lowest boiling point.

Explanation:

<em>Interhalogens</em> have covalent bonds, and as such,<u> the higher the difference in electronegativity, the higher the expected boiling point will be</u>.

Looking at the Periodic Table of elements, we can see that in these four examples, <em>the compound with the lowest electronegativity difference</em> -and thus<em> the lowest boiling point</em>-, is chlorine fluoride, ClF.

4 0

3 years ago

Alpha helices are a type of secondary structure in proteins. What is the length of a 69.0 69.0 kDa single‑stranded α‑helical pro

Veronika [31]

Answer : The length of protein will be, 94.1 A⁰

Explanation :

First we have to calculate the amino acid residue.

$\text{Amino acid residue}=\frac{\text{Length of single strand of protein}}{\text{Mean residue mass}}$

Given:

Length of single strand of protein = 69.0 kDa

Mean residue mass = 110 Da

$\text{Amino acid residue}=\frac{69.0kDa}{110Da}=\frac{69000Da}{110Da}=627.3$

Now we have to calculate the number of turns in protein.

$\text{Number of turns in protein}=\frac{\text{Amino acid residue}}{3.6\text{amino acid per turn of the alpha-helix}}$

As there are 3.6 amino acid per turn of the alpha-helix.

$\text{Number of turns in protein}=\frac{627.3}{3.6}=174.25$

Now we have to calculate the length of the protein.

$\text{Length of protein}=\text{Number of turns in protein}\times \text{Length of each turn}$

As, we know that the length of each turn = 0.54 A⁰

$\text{Length of protein}=174.25turns\times \0.54\AA=94.1\AA$

Thus, the length of protein will be, 94.1 A⁰

3 0

3 years ago

2. How does the way elements are grouped in the periodic table serve as an advantage to scientists?

Goryan [66]

When looking down the groups the elements have an equal number of electrons in the outer shell. This means they react in a similar way making it easier for scientists to use.

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4 years ago

Which terms are associated with the Cenozoic era: Homo sapiens, mammoth, dinosaur, grass?

abruzzese [7]

Mammoths and dinosaurs lived in the Cenozoic era, and there was also grass. Your answers are Mammoth, dinosaur, grass.

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3 years ago

The discharge of phosphate in detergents to the environment has led to imbalances in the life cycle of freshwater lakes. A chemi

alina1380 [7]

<h3>What is spectrometric method?</h3>

A technique called spectrophotometry uses light intensity measurements as a beam of light travels through a sample solution to determine how much a chemical compound absorbs light.
Every chemical either absorbs or transmits light across a specific spectrum of wavelengths, according to the fundamental principle.

There are two main techniques used among the various forms of spectrophotometry:
ultraviolet-visible range spectrophotometry, which examines the reflectance of certain spectra,
and absorption spectrophotometry, which examines the absorption of radiation and particular spectra of light.

Applications of spectrophotometry are useful for determining how well gases, liquids, and solids transmit, reflect, and absorb light.

Learn more about spectrometric method here:

brainly.com/question/18339003

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2 years ago