In an experiment, a scientist placed two chemicals in a sealed container as seen in the picture below. Before mixing the two reactants, she determine
the total mass of the flask and its contents. After determining the total
mass, she mixed the two chemicals to allow the chemical reaction to
occur. She then placed the flask and its contents back on the balance as
seen below. Which represents the BEST prediction to the second scale
reading after the reaction?

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 

Ithink d hope that

The density would be 1.622