How to know oxidizing and reducing agents.

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

Light waves can move through , but they travel fastest when they move through a(n) .

Find the mass, in grams, of 5.00*10^23 molecules of f2