The isotonic solution is appropriate to be given in the goal of maintaining a stable cell environment is because with this solution, this permits water movement to be free, making the solute concentrations to be constant, where in they are not going to be changed, maintaining the environment of the cell. In which this will help the cell to be in a stable environment.
if i am correct the volume of nitrogen gas has to equal to molecules density, making the substance 1.27 liters :)
If a liquid does not have a constant boiling point but it looks the same throughout, then the liquid is probably a homogeneous mixture. A liquid that does not have a constant boiling point would mean that it is not a pure liquid, it would be a mixture of different substances. As stated, the liquid is observed to be the same all throughout then it most likely is homogeneous. Homogeneous mixture are mixture which has the same composition of the components at any point of the mixture. So, it would have uniform properties as well. Examples of this type of mixture would be soda, coffee, tea and juices.<span />
Answer:
These elements show variable oxidation state because their valence electrons in two different sets of orbitals, that is (n-1)d and ns. The energy difference between these orbitals is very less, so both the energy levels can be used for bond formation.
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Answer:
C. 662.60
Explanation:
the mass of Mn is about 54 grams/mol, (multiply that by 2 since there are 2 Mn's).
the mass of Se is about 79 grams/mol, so multiply that by 7
if you add them, you get 662.60 (approxamitly)