Dry air is primarily made up of nitrogen (78.09%) and oxygen (20.95%). which of these is the solvent and which is the solute?

Nitrogen is the Solvent and Oxygen is the Solute.

Try to remember that the solvent is always in larger quantity than the solute; I remember it by knowing that solvent has more letters, so it is in larger quantity.

Therefore, nitrogen would be the solvent and the oxygen would be the solute.

Hope this helps.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

Only one reactant yields 2 or more products. meaning you will only have 1 product and it will break down into 2 or more products. eg. h2o -> h2 + o2