a mixture of n2, o2, and ar has mole fractions of 0.25, 0.65, and 0.10, respectively. what is the pressure of n2 if the total pressure of the mixture is 3.9 bar?

Pest analysis, a framework for understanding different facets of the world in which a business operates, looks particularly at political, social, and technological factors.

The and the gall bladder work together to produce, store, and use bile to digest a) liver; fats b) stomach; fats c) appendix; food. d) pancreas; sugars

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.