Question

The air you breathe is made of 21% oxygen and 78% nitrogen. The oxygen in air is the _____ and the nitrogen is the _____. solution, solute solute, solvent solvent, solution

Answer 1

None of the choices is correct.
Air is a mixture, NOT a solution.
There are no solvents or solutes in a mixture.

Answer 2

solute, solvent.

Solute is what is dissolved in the solvent. Since there is less oxygen and more nitrogen, the oxygen is the solute and the nitrogen the solvent. Solution is not included in the answer because the air is the solution (the combination of the solutes and solvent).