The correct statement about hydrochloric acid and acetic acid is : ( A )
The pH of a solution of hydrochloric acid must be less than the pH of a solution of acetic acid.
Given that pH is the inverse of concentration of H₃O⁺ ions , The stronger acid ( Hydrochloric acid ) dissociates in solution producing a maximum amount of H₃O⁺ ion, while the weak acid ( acetic ) will disassociate partially in a solution producing a lesser amount of H₃O⁺ ion.
Therefore the pH of a solution of hydrochloric acid must be less than the pH of a solution of acetic acid.
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Stem cells of the animals are the most similar to the meristematic cells of the plant.
<u>Explanation:</u>
- Meristematic cells are the most important cells for the plant which give rise to the various tissues and plant organs. These meristematic cells are capable to undergo cell division and they are called totipotent.
- The stem cells of animals and humans are capable of doing the function by replacing the new cells for growth and development.
- The difference among these two tissues is that meristematic is capable to produce total organs whereas stem cells are capable to produce only specific tissues.
Answer: true
Explanation:Apoptosis and autophagy are both forms of programmed cell death. Necrosis is the death of a cell caused by external factors such as trauma or infection and occurs in several different forms.
<h3><u>Answer;</u></h3>
35.540 cubic inches
<h3><u>Explanation;</u></h3>
First we find the volume of the cylindrical container:
V = π(r^2)h
d = 3
r = 3/2 = 1.5
V = π(1.5^2)(8.5)
= 60.083 cubic inches
Then we find the volume of three tennis balls:
volume of one ball (sphere):
V = (4/3)π(r^3)
d = 2.5
r = 2.5/2 = 1.25
V = (4/3)π(1.25^3) = 8.181
volume of three spheres:
3 × V = 3 × 8.181
= 24.543 cubic inches
Then we get the difference to find the unused volume of the container:
60.083 - 24.543 = 35.540 cubic inches
