Acanister of gases contains oxygen, nitrogen, and hydrogen.  oxygen's partial pressure is 100 torr, nitrogen's partial pressure is 200 torr, and hydrogen's partial pressure is 50 torr.  what is the total pressure in the canister?

What is the lowest number energy level where a d sublevel is found

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium