1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
viva [34]
3 years ago
11

The SARS-Cov2 spike protein has a large N-terminal domain, a transmembrane helix and a short C-terminal region. Before the struc

ture of the protein was known, researchers analysed its amino acid sequence using hydropathy plot analysis to predict the position of loops exposed to an aqueous environment because these show as:
A broad peak (>20 residues) of mixed positive and negative hydropathy

A broad peak (>20 residues) of positive hydropathy

A narrow (5-10 residues) of positive hydropathy

A narrow peak (5-10 residues) of negative hydropathy
Chemistry
1 answer:
kiruha [24]3 years ago
3 0

Answer:

Explanation:

-g

You might be interested in
Is C2H6 empirical molecular or both
marshall27 [118]

Answer:

molecular

Explanation:

7 0
3 years ago
The formation of SO3 from SO2 and O2 is an intermediate step in the manufacture of sulfuric acid, and it is also responsible for
jeka57 [31]

Answer:

118.22 atm

Explanation:

2SO₂(g) + O₂(g) ⇌ 2SO₃(g)      

KP = 0.13 = \frac{p(SO_{3})^{2}}{p(SO_{2})^{2}p(O_{2})}

Where p(SO₃) is the partial pressure of SO₃, p(SO₂) is the partial pressure of SO₂ and p(O₂) is the partial pressure of O₂.

  • With 2.00 mol SO₂ and 2.00 mol O₂ if there was a 100% yield of SO₃, then 2 moles of SO₃ would be produced and 1.00 mol of O₂ would remain.
  • With a 71.0% yield, there are only 2*0.71 = 1.42 mol SO₃, the moles of SO₂ that didn't react would be 2 - 1.42 = 0.58; and the moles of O₂ that didn't react would be 2 - 1.42/2 = 1.29.

The total number of moles is 1.42 + 0.58 + 1.29 = 3.29. With that value we can calculate the molar fraction (X) of each component:

  • XSO₂ = 0.58/3.29 = 0.176
  • XO₂ = 1.29/3.29 = 0.392
  • XSO₃ = 1.42/3.29 = 0.432

The partial pressure of each gas is equal to the total pressure (PT) multiplied by the molar fraction of each component.

  • p(SO₂) = 0.176 * PT
  • p(O₂) = 0.392 * PT
  • p(SO₃) = 0.432 * PT

Rewriting KP and solving for PT:

\frac{p(SO_{3})^{2}}{p(SO_{2})^{2}p(O_{2})}=0.13\\\frac{(0.432*P_{T})^{2}}{(0.176*P_{T})^{2}(0.392*P_{T})} =0.13\\\frac{0.1866*P_{T}^{2}}{0.0121*P_{T}^{3}} =0.13\\\frac{15.369}{P_{T}}=0.13\\P_{T}=118.22 atm

5 0
3 years ago
Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations. What might be
Nezavi [6.7K]
They are based in current knowledge 

6 0
3 years ago
Lagta ha bhaijaan sa sab bahenjaan naraz haan koi bat ni kr raha​
Fiesta28 [93]

Answer:

maybe,lol

Explanation:

5 0
2 years ago
A person walking covers 5.20 m in 10.4 s. How fast is the person moving?
salantis [7]

Answer:

<h2>0.50 m/s</h2><h2></h2>

Explanation:

Velocity = distance over time

where distance = 5.20 m

                   time = 10.4 s.

velocity = <u>  5.20  m </u>

                  10.4 s.

            = 0.50 m/s  

8 0
3 years ago
Other questions:
  • Why can't calcium hydroxide be written caoh2?
    7·1 answer
  • Someone help me please
    9·1 answer
  • Exchanging ideas about science is called ______?
    9·1 answer
  • After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?
    7·1 answer
  • What volume will 2 moles of nitrogen occupy at 780 torr and 10C.
    14·1 answer
  • PLEASE HELP ITS MAJOR
    10·2 answers
  • Which one has the larger ionization energy ??
    12·1 answer
  • Write the balanced equation for the ionization of the weak base pyridine, c5h5n , in water, h2o. Phases are optional.
    14·1 answer
  • Which compounds exhibit geometric isomerism? Draw and name the two isomers in each case:(b) 3-hexene
    6·1 answer
  • Identify indicators of a chemical reaction. check all of the boxes that apply. a black powder is added to a clear liquid. fizzin
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!