A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at a total pressure of
1.0 atm if P...=609.5 mmHg and P = 0.5 mmHg?
He
CO2
a. 760 mmHg
b. 500 mmHg
c. 150 mmHg
d. 100 mmHg

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

What happens to the atomic radius when an elctron is lost