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guapka [62]
3 years ago
5

What are Phosphatidylcholine?

Chemistry
1 answer:
Illusion [34]3 years ago
3 0
The answer is that Phosphatidylcholine<span> is a chemical contained in eggs, soybeans, mustard, sunflower, and other foods. The term "</span>phosphatidylcholine<span>" is sometimes used interchangeably with "lecithin," although the two are different. Choline is a component of </span>phosphatidylcholine<span>, which is a component of lecithin.</span>
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Indicate the direction of polarity of each of the following covalent bonds. Please just write a + or - not the bonds.
Nostrana [21]

Answer:

1. C+ ---- O-

2. O+ ---- Cl-

3. O+ ----- F-

4. C+ ----- N-

5. Cl- ----- C+

6. S- ----- H+

7. S+ ----- Cl -

Explanation:

Electronegativity determines the polarity . There may be two atoms in a bond with high electronegativity, in such cases the positive charge is given to atom with comparatively lower electronegativity. Electronegativity determines the easiness with which an atom attract electrons in a chemical bond. A polar bond is formed when the difference in the electronegativity of two combining atoms is between 0.4 and 1.7. The correct direction is

1. C+ ---- O-

2. O+ ---- Cl-

3. O+ ----- F-

4. C+ ----- N-

5. Cl- ----- C+

6. S- ----- H+

7. S+ ----- Cl -

5 0
4 years ago
Scientists believe that the modern horse developed from a short, horse-like mammal about the size of a dog. Over millions of yea
Fittoniya [83]

Answer:

B

Explanation:

Horses with longer legs could out run predators and survive. Not getting eaten or injured helps with staying alive long enough to reproduce.

8 0
3 years ago
How many seconds are in one year?<br> how many seconds are in 1 year
Alja [10]

Answer:

Hey mate.....

Explanation:

This is ur answer....

<em>31,536,000 seconds </em>

<em>drum roll, please… one year would equal 365 times 24 times 60 times 60 seconds…or 31,536,000 seconds! That's over 31 million seconds you have to spend over the next year....</em>

<em></em>

Hope it helps u,

Mark me brainliest pls....

FOLLOW ME! :)

5 0
3 years ago
What is the function of a mordant in gram staining?
Anna71 [15]
The  function  of  mordant  in  the   gram  staining  is  to   expose  grams  positive  cell  to  the  decolorizer  which  dissolves  the  lipids  in  the  cell  wall   thus  allowing  the  crystals  violent-iodine  to  leach  out  of  the  cell. This  facilitate  the  cell  subsequently   be  stained  by  with  safranin.
5 0
3 years ago
Read 2 more answers
A silver bar has a mass of 368g. What is the volume in cm³ of the bar? The density of silver is 19.5g/cm³.
BabaBlast [244]

Answer:

<h2>18.87 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question we have

volume =  \frac{368}{19.5}   \\  = 18.871794..

We have the final answer as

<h3>18.87 cm³</h3>

Hope this helps you

4 0
3 years ago
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