Ageochemically important reaction is caco3(s) + co2(g) + h2o(l) = ca2+¬(aq) + 2hco3-(aq)¬ a) identify the concentration scales involved in the standard states for each species. b) calculate the standard free energy change and the enthalpy for the reaction at 25 oc and 1 atm. c) calculate the equilibrium constant. d) will an increase in temperature favor a shift towards the products or reactants?

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.