The graduated cylinder shown is filled to the dashed line with water. A marble is
then placed in the cylinder and the water
level rises to the solid line as shown in
the diagram. What is the volume of the
marble?

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers