Why do some recipes have high altitude directions?

Motivation cannot be developed with practice; a person either possesses it or they do not.

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

What is the percent by mass of oxygen in fe2o3