Comparing Appearance, Relative Density, and Solubility In this task, you’ll observe and compare the appearance, relative density, and solubility of common household materials in water. Part A Observe the appearance of each material before it is mixed, its relative density, and how well it dissolves in water. Baking Soda Baking Powder Salt Sugar Flour Vinegar Cooking Oil Part B What observation about baking powder suggests that it is a mixture of substances?

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 

The air is going to come out because of the low pressure.

The answer should be vaporization