Two pieces of pure copper are shown below. the two pieces must have the same ?

Visibly you can see that the two copper are different sizes so the mass and volume are different. No information is given about the temperature but they are side by side so you can assume they're both room temp. The density is a ratio of mass per volume. The density will remain the same unless the two are different purities or physical states.

Scissors and a seesaw both cut things that’s the only comparison