Sandblasted: More smooth because all the rough edges are "blasted" away. And slightly smaller because of the loss of the edges.
Non-Sandblasted: Not smooth; rough.
CnH2n since the equivalent unsaturation is equal with 1
D, because matter does not change in space but unlike gravity, which changes, matter, is the mass of it, which will stay the same unless there is a chemical change or, physical change, but not in this case, so the answer you are looking for is D. hope this enlarged your understanding and knowledge.
Solutions are homogenous while a suspension is heterogenous, which means that you may not observe and differentiate parts of a solution (such as putting salt in water) but you can in suspensions (such as mixing water and sunflower oil).
