Explain the term chemical hand

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.

Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12