Osmosis causes water to move from areas of low salt concentration to areas of high salt concentration. The internal NaCl concent
ration of red blood cells is 0.9 M. The diagram below shows red blood cells submerged in solutions of four different NaCl concentrations—0 M, 0.65 M, 0.9 M, and 2 M. Which of the diagrams shows red blood cells in the 2 M solution?
2 answers:
You haven't given us the diagrams, but in case you're asking about the shape, imagine this: a disc, with a sunken centre, starting to resemble a donut.
In a low salt solution, the cells would start to absorb water, thus, inflating, up to the point of resembling spheres, and even bursting in the end. In case of a salty solution like the one you proposed, blood cells would lose water and would become a bit amorphous. In the attached pic you can see a standard blood cell (on the left), and a cell submerged in a salty solution (on the right).
In a low salt solution, the cells would start to absorb water, thus, inflating, up to the point of resembling spheres, and even bursting in the end. In case of a salty solution like the one you proposed, blood cells would lose water and would become a bit amorphous. In the attached pic you can see a standard blood cell (on the left), and a cell submerged in a salty solution (on the right).
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Answer
Correct answer is :It has two elements
Explanation
A binary compound is a compound that is made up of two of the elements in the periodic table. Some examples of binary compounds are and
. This means that a binary compound can have more than 2 atoms as in the case of hydrogen oxide. Some binary compounds are ionic as in the case of sodium chloride.This shows that they do not necessarily have to have covalent bonds. This also rules out the possibility that they may always have double bonds as ionic compounds are bound together by ionic bonds. The only thing that will always be true of binary compounds is that they will always have 2 elements.