A gas mixture contains 0. 150 mol of oxygen (o2) gas, 0. 116mol of nitrogen (n2) gas. And 0. 211 mol of argon (ar) gas in a 0. 500l flask at 298k. What is the partial pressure of n2 the mixture?.

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The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

What is the leading cause if water scarcity throughout much of the world