The air we breathe is mostly a mixture of oxygen and hydrogen. How do air molecules change above 100 km? Water vapor condenses from the cold air.

The electrically charged ions in the ionosphere creates turbulence.

Gases are no longer evenly mixed but layered.

Meteors burn in Earth's atmosphere.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

How would you reduce the volume of gas

Classify this reaction: 2al+n2-> aln.