Gizmo 2. Click Reset, and then click Slice to cut the polystyrene into pieces. Drag each piece into the
water and then back to the block.
What happens?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

Compare and contrast physical changes with chemical changes.

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?