G A scientist measures the standard enthalpy change for the following reaction to be 560.3 kJ : 2BrF3(g) Br2(g) 3 F2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of BrF3(g) is kJ/mol. sample of solid platinum is heated with an electrical coil. If 31.9 Joules of energy are added to a 14.7 gram sample and the final temperature is 38.9oC, what is the initial temperature of the platinum

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

No table found. the question asks for covalent bond based on electronegativies