What is the molecular formula of the molecule that has an empirical formula of C2H40 and a molar mass of 176.21 g/mol? Type your answer using the following format:
CuCl2 for CuCl2.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions