A 2.0 L flexible container holds 5.0 moles of oxygen (O2) gas. An additional 15.0 moles of nitrogen gas (N2) is added to the container. What is the new volume of the container?

8liters

Explanation:

Total volume = V(O2) + V(N2).

V(O2) = 2.0 L; V(N2) = X L.

If:

2.0 L = 5.0 moles

X L = 15.0 moles.

Then,

V(N2) = X L = (15.0 moles) * (2.0 L) / (5.0 moles) = 6.0 L.

Finally,

Total volume = VTotal (container) = V(O2) + V(N2) = 2.0 L + 6.0 L = 8.0 L.

Total volume = 8.0 L.

8.0 L is the new volume of the container.

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation:

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.