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1 year ago

Soil that is damaged and loses its nutrients is quick to regain nutrients.

Chemistry

1 answer:

Amiraneli [1.4K]1 year ago

6 0

Answer:

false,soil damage and nutrient loss can be a major problem so it can not gain nutrients quickly

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How many moles of Mgs203 are in 245g of the compound

marishachu [46]

Molecular weight of MgSO3 = 104.3682 g/mol
181 g / 104.3682 g/mol
= 1.73 g

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3 years ago

How does the quantum theory of atoms explain the nature of the emission-line spectrum of hydrogen?

Oliga [24]

Answer:

Niels Bohr The electron in a Hydrogen atoms can only circle the nucleus in certain paths or orbits.

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3 years ago

Alpha helices are a type of secondary structure in proteins. What is the length of a 27.0 kDa single‑stranded α‑helical protein

iogann1982 [59]

Answer : The length of protein will be, 36.8 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 = 27.0 kDa

Mean residue mass = 110 Da

$\text{Amino acid residue}=\frac{27.0kDa}{110Da}=\frac{27000Da}{110Da}=245.4$

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.

$\text{Number of turns in protein}=\frac{245.4}{3.6}=68.17$

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

$\text{Length of protein}=68.17turns\times 0.54\AA=36.8\AA$

Thus, the length of protein will be, 36.8 A⁰

8 0

2 years ago

CO2 can be prepared using the following processes except *

Alisiya [41]

Answer:

decomposition

Explanation:

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3 years ago

Why is one side of the moon called "the dark side of the moon"?

dlinn [17]

The 'dark side' of the Moon refers to the hemisphere of the Moon that is facing away from the Earth. ... It is only 'dark' to us, as that hemisphere can never be viewed from Earth due to a phenomenon known as 'Tidal Locking'

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3 years ago