Which of the following most likely requires intermolecular forces?
a. a spider walking on the bottom of a leaf
b. a rock maintaining its solid shape
c. a koala using claws to hold onto a tree

Compare and contrast physical changes with chemical changes.

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.