10.0 g (0.385 mol) of a new salt dissolves in enough water to make 75.0 g of total solution (salt and water). From the dissolving process, the solution increases in
temperature by 12.2°C. What is the enthalpy of solution for this new salt (AH soln)?
Assume the specific heat capacity of the solution is 4.20 J g 10c-1.
0 -9.98 kJ/mol
0 -3.84 kJ/mol
O +3.94 kJ/mol
0 -0.148 kJ/mol
+9.98 kJ/mol

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 

Matter- occupies space and possesses rest massno matter is the opposite

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?