Answer:
Partial pressure of Ne = 366 mmHg
Explanation:
In a mixture, the sum of partial pressures for each gas, is the total pressure for the system.
Partial pressure He: 43 mmHg
Partial pressure Ar: 835 mmHg
Partial pressure Xe: 111 mmHg
Partial pressure Ne: ?
Total pressure = 1355 mmHg
43 + 835 + 111 + x = 1355
989 + x = 1355
x = 1355 - 989 → 366
Answer:
Option D: Fluorine
Explanation:
From the periodic table, Nickel and Sodium are metals. Which means that they are good conductors of electricity.
While silicon is a metalloid. A metalloid has properties of both metals and nonmetals. Thus, it has tendencies to conduct electricity.
Fluorine is a non - metal which means that it doesn't conduct electricity.
Thus, the most likely that is not a good conductor is Fluorine.
Answer:
3
there are 3 nitogen atoms and two oxygen atoms on (3NO2) , also 2 hydrogen atoms and i oxygen atom on (H2O) therefore 2+1=3 oxygen atoms
Answer:
Atleast give me brainliest.
Explanation:
<h2>Answer : Law of conservation of mass</h2><h3>Explanation :</h3>
The law of conservation of mass states that in any reaction mass is neither created nor lost it has to remain constant in a system.
In this case, when the reaction setup was done in normal way the mass was lost in surrounding was not considered nor being calculated; whereas when the reaction was studied in a closed system where the gas was collected after the reaction the mass changes was noted down which helped to prove the point of law of conservation of mass and energy.
One can consider an example of soda can where the carbonated drink contains pressurized carbon dioxide gas. when opened the gas bubbles gets lost into the surroundings and we don't measure the mass changes. Instead if the soda can was opened in such a way where the gas evolved was measured then the mass changed would remain the same.