Write the complete electron configuration for the following. Do not use noble gas configuration abbreviations a. calcium ion b. chromium d. argon e. fluroide

When 125.0 mL of 1.00 M NazSO. solution at 25.0 C is added to 125.0 mL of 1.00 M Ba(NO3)2 solution also at 25.0 C, a white solid precipitate of BaSO+ forms. The temperature of the mixture increases to 71.1 C. Assume the specific heat capacity of the solution is 6.37 J/C g and the density of the solution is 1.00 g/mL Determine the balanced net ionic equation for this chemical reaction, include ohvsical states or all species. b. Calculate the amount of heat evolved by this reaction c. Calculate the enthalpy change per mole of the solid product formed