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What is the correct definition of Evolution?   

Like terms have the same coefficients.

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reaction below?Sn4+(aq) + Cd(s) → Sn2+(aq) + Cd2+(aq) K = 4.01e18

@X@user.full_name@X@ @GMU: A flexible container was filled with O2 gas at a pressure of 1.704 atm and volume of 11.401 L. What volume would this same gas occupy if the pressure increased to 3.558 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.8359 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1073.85 cm?

@X@user.full_name@X@ @GMU: What is the empirical formula of a compound if its percent composition is 60.96 % C and 15.35 % H? The compound contains only C, H and N.

@X@user.full_name@X@ @GMU: The density of a particular gas is 3.8579 g/L at 774.23 mm Hg and 22.93 °C. What is the molecular mass of the gas?

Which of the following conditions will cause equilibrium to shift to the left?2NH3(g) ⇋ N2(g) + 3H2(g)

@X@user.full_name@X@ @GMU: What is the coefficient, b, in the reaction below, if Kc = 6.29e-4 and Kp = 1.32e-5 at 306.39°C?2A(s) + bB(g) → 3C(g)

@X@user.full_name@X@ @GMU: From the reaction below, calculate the free energy of formation for C8H8(g) at 25°C, if ΔGfo(CH4(g)) is -50.790 kJ/mol.8CH4(g) → C8H8(g) + 12H2(g) ΔGo = 620.735 kJ/mol