Answer:
By placing it in water and measuring how high the water rises
Explanation:
You can place the object in a can filled with water. You'll then see that as it sits there, the water level rises. You would then measure that to find the volume.
I suppose they can all be classified as compounds
Jupiter has a giant red spot
Answer:
Looks like <em>Trigonal Planar</em>
Explanation:
There are only 3 areas of electron density and no unpaired electrons on the central atom, which indicates trigonal planar. This image might help...