What lessons does the history and study of the periodic table offer to other fields of science, and the pursuit science more generally

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?

What is the force of an object when it landed(sitting in the ground)