Question

Which of the following most likely has neither a fixed shape nor a fixed volume???

neon gas

solid copper

liquid nitrogen

liquid mercury

Answer 1

Answer: neon gas

Step-by-step explanation: Matter is classified into three main categories:

a) Solids: have fixed size and volume . They have strongest forces of attraction.

b) Liquids: have fixed volume but no fixed shape. They acquire the shape of the container. They have intermediate forces of attraction.

c) Gases: have no fixed shape and no fixed volume. They occupy complete volume of the container. They have weakest forces of attraction.

Answer 2

Solids have a fixed shape and a fixed volume. Liquids don't have a fixed shape, but they do have a fixed volume.
This means that the answer which most likely has neither a fixed shape nor a fixed volume is neon gas.