Answer:
Hydroxylamine and pyridine
Explanation:
Just did it
To measure the kinetic engery from the inside and outside of something to be able to tell how hot or coll something is.. without touching it also
Lecithin is an emulsifier agent that's composed of 5 smaller molecules: phosphoric acid, choline, glycerol( is the backbone), and two fatty acids.
The fatty acids, which are hydrophobic (afraid of water), makes this substance more similiar to fats and represent the non-polar part of the lecithin.
The phosphate group is the polar portion of the molecule and it's the negatively charged. The choline is positively charged, which readily dissolve in water<span>.
</span><span>Lecithin is a good emulsifier because of these structural features. the hydrophobic contacts with the oil, while the hydrophilic end contacts with the water.</span>
The answer is D. Evaporating water only breaks apart intermolecular bonds like H-bonds and dipole-dipole bonds, and does not change the chemical composition (or intramolecular bonds).
<u>Answer:</u> The concentration of A after 865 seconds is 0.00125 M
<u>Explanation:</u>
The integrated rate law equation for second order reaction follows:
![k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B1%7D%7Bt%7D%5Cleft%20%28%5Cfrac%7B1%7D%7B%5BA%5D%7D-%5Cfrac%7B1%7D%7B%5BA%5D_o%7D%5Cright%29)
where,
k = rate constant = 
t = time taken = 865 second
[A] = concentration of substance after time 't' = ?
= Initial concentration = 0.00440 M
Putting values in above equation, we get:
![0.660=\frac{1}{865}\left (\frac{1}{[A]}-\frac{1}{(0.00440)}\right)](https://tex.z-dn.net/?f=0.660%3D%5Cfrac%7B1%7D%7B865%7D%5Cleft%20%28%5Cfrac%7B1%7D%7B%5BA%5D%7D-%5Cfrac%7B1%7D%7B%280.00440%29%7D%5Cright%29)
![[A]=0.00125M](https://tex.z-dn.net/?f=%5BA%5D%3D0.00125M)
Hence, the concentration of A after 865 seconds is 0.00125 M