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fredd [130]
3 years ago
8

Relate the structure of water to its ability to act like a solvent

Biology
2 answers:
forsale [732]3 years ago
8 0

Water is a polar molecule, which means one part of the molecule is partially positive, the other part is partially negative. When an ionic compound is dissolved in water, the cation is attracted to the negative pole of the molecule while the anion is attracted to the positive pole.  

When another polar compound (i.e. ammonia) is dissolved in water, the negative pole of the molecule is drawn to the positive pole of water, and vice versa.

Sidana [21]3 years ago
4 0
Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid. This is important to every living thing on earth.

I hope that’s help:)
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A red blood cell placed in a hypertonic solution will shrink in a process called crenation. A red blood cell placed in a hypoton
-BARSIC- [3]

Answer:

The correct answers are A. "crenation", B. "hemolysis", C. "hemolysis", D. "crenation" and E. "neither will occur".

Explanation:

0.9% (m/v) NaCl or 5.0% (m/v) glucose are isotonic solutions at which the cells will not suffer any harmful consequence. A solution with a higher concentration than the isotonic conditions would result in the cells crenation, while a solution with a lower concentration would result in the cells hemolysis. Therefore the consequences of putting the red cells to the solutions stated in the question are as following:

A: 3.21% (m/v) NaCl Solution  = crenation (higher than 0.9% (m/v) NaCl)

B: 1.65% (m/v) glucose Solution  = hemolysis (lower than 5.0% (m/v) glucose)

C: distilled H2O Solution  = hemolysis (lower than 0.9% (m/v) NaCl or 5.0% (m/v) glucose)

D: 6.97% (m/v) glucose Solution  = crenation (higher than 5.0% (m/v) glucose)

E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl = neither will occur (equal to 5.0% (m/v) glucose and 0.9% (m/v) NaCl)

6 0
3 years ago
Why might a trait that is an advantage today become a disadvantage in the future
Nuetrik [128]

Advancement in technology. For example, body odor on humans was considered attractive thousands of years ago. Now it's just considered a hassle and we try our best to get rid of the smell.

3 0
3 years ago
Which of the following is NOT transported mainly in the plasma?
abruzzese [7]

Answer:

in my opinion I think it's amino Acids

3 0
3 years ago
What is the final product of tranlation
Vinil7 [7]

Answer:

polypeptide

Explanation:

The amino acid sequence is the final result of translation, and is known as a polypeptide. Polypeptides can then undergo folding to become functional proteins.

3 0
2 years ago
Read 2 more answers
In regions of the cardiovascular system where there is steady laminar blood flow, the shear stress on cells lining the walls of
Lynna [10]

Answer:

250 N/m2

Explanation:

Shear stress on cells lining the walls of the blood vessels  is equal to 2020 dyne/cm2

In terms of Newton/square meter, shear stress is equal to

20*\frac{dyne}{cm^2}  (\frac{10^{-5}N}{1 dyne} )*(\frac{1 cm^2}{10^{-4}*m^2} )\\= 2.0 N/m2

Shear modulus is equal to shear stress divided by shear strain

Thus, shear modulus is equal to

= \frac{2.0}{0.008} \\= 250N/m2

7 0
3 years ago
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