- Does lifting a mass higher change the amount of force needed? why?

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How about the detail specification of Corner Cube Retroreflectors? 1. Calculate the molarity of 0.600 mol of Na2S in 1.90 L of solution. 2. Calculate the molarity of 22.3 g of MgS in 989 mL of solution.? Can someone help me solve this problem for x. 7/x +1/2x = 5? Preciso de ajuda? Help!
Calculate the standard enthalpy, entropy, and Gibbs free energy for the following reaction: Fe2O3 (s) + Al (s) <-> Al2O3 (s) + Fe(s)?

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