Answer:
It's either Substance 1 or Subatance 4 !
Answer:
a.
.
b.

c.

Explanation:
Hello,
In this case, considering that the valve is opened, we can use the Boyle's law in order to compute the final pressure of argon by considering its initial pressure and volume and a final volume of 5.0 L:

And the final pressure of helium:

Which actually are the partial pressure of both of them, it means that the total pressure is:
Finally, the mole fraction of each gas is computed by considering the Dalton's law:


Best regards.
When 2 molecules of pyruvate from glycolysis enters the mitochondria,
2 molecules of CO2 are released
Answer:
Because Oxygen shares 2 electrons with mutual bond interaction forming covalent bond . thus it is diatomic due to K shell 2 electrons mutual sharing .
Explanation: