1. A chemist is required to make the compound below for her company. Propose a one step synthesis that will save the company time and money. (5 marks) dtomic bonding 1. Write the electron configuration for an iron atom with a +2 charge. Also, write the short form of the orbital diagram. Explain how Hund's Rule applies to this element's electron configuration and also explain the inconsistency in the electron configuration that occurred to achieve a more stable energy arrangement. (5 marks) Thermodynamics 1. When a 1.25kg sample of water was heated in a kettle, its temperature increased from 16.4C to 98.9C. How much heat did the water absorb? (5 marks) 1. 300mL of 0.00325mol/L barium chloride is added to an equal volume of 0.00400mol/L sodium sulphate. What is the concentration of barium ions after the precipitation of barium sulphate (Ksp=1.50 109). Is it complete? (10 marks) 1. Write the equation for the reduction and oxidation half-reaction, and balanced net redox equation for the following in an acidic condition. (5 marks) Pt(s)+NO3(aq)+Cl(aq)PtCl62(aq)+NO2(g)