Answer:

Explanation:
Using the Ideal Gas Law we have
and the number of moles n could be expressed as
, where m is the mass and M is the molar mass.
Now, replacing the number of moles in the equation for the ideal gass law:

If we pass the V to divide:

As the density is expressed as
, we have:

Solving for the density:

Then we need to convert the units to the S.I.:






Finally we replace the values:




#2 onshahebsisbunwubsydtebwownsddhiiw
Answer: D. Made of only one kind of atom
Explanation:A compound forms whenever two or more atoms form chemical bonds with each other.
Base + Acid = Water + Salt
It makes salt water... water and potassium sulfate
Balanced rxn is:
2KOH + H2SO4 = 2H2O + KSO4
There are 150 neutrons in 15N