A student is trying to identify a clear liquid that he finds in a beaker in the classroom. He thinks the liquid might be either water or ethanol, and he decides to identify the liquid using a density. The density of water is 1 g/cm3. The density of ethanol (clear alcohol) is 0.789 g/cm3. The student has 50 cm3 of the liquid, and its mass is 4.99 grams. What is the identity of the liquid?

A. ethanol
B. water
C. neither water nor ethanol
D. a 50/50 mixture of water and ethanol

PLEASE BE RIGHT, WORTH 30 PTS

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