B. Oxygen. Hope this helps.
Answer:
The correct answer is: <u><em>"The ethanol will evaporate first"</em></u>
Explanation:
Fractional distillation is a physical process used to separate various liquid mixtures in which liquids have nearby boiling points. In other words, both compounds are volatile (volatility is the property of evaporating, moving from the liquid to the gaseous state).
The process consists in heating the liquid mixture to be separated. Upon reaching the boiling temperature of the most volatile component (with a lower boiling point) a vapor phase will be formed, which will mostly contain this substance at the beginning.
Then, as the temperature continues to rise and as time goes by, multiple evaporation and condensation cycles continuously occur (each cycle is known as the "theoretical plate"), until the lower boiling constituent first emerges, that is, It will separate.
In this case, since ethanol is the element with the lowest boiling point, it will be the most volatile and will separate first. So <u><em>the correct answer is: "The ethanol will evaporate first"</em></u>
Answer:
D. Ar.
Explanation:
The<em> </em><em>electron configuration</em><em> of the atom reflects how the electrons are distributed among the various atomic orbitals</em>. Just as for neutral atoms, we use the Pauli exclusion principle and Hund’s rule in writing the ground-state electron configurations of cations and anions.
<u>Ions formed from atoms of most representative elements have the noble-gas outer electron configuration of ns²np⁶.</u> In the formation of a cation from the atom of a representative element, one or more electrons are removed from the highest occupied n shell. The electron configuration of calcium and its ion is as follows:
Ca: [Ar]4s² Ca²⁺ : [Ar]
Answer:
Follows are the solution to this question:
Explanation:
Given value:
In point a:
Calculating the process of Isothermal, when the temperature is constant:
In point b:
Calculating the adiobatic process:
In point c:
workdone by gas is 1.018 KJ
Answer:
Most plastics are based on the carbon atom
Explanation:
Hope this helps