Consider the following reaction at a certain temperature, which initially only contains SO3(g) 2SO3(g) ⇌ 2SO2(g) + O2(g)

The initial partial pressure of SO3(g) is 0.125 bar. When the reaction reaches equilibrium, the total pressure is found to be 0.164 bar. calculate K for this reaction. Express your answer to three significant figures.

b) mutualism

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since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.