Question

In which phase(s) of matter are the atoms closely packed but still able to slide past each other?

Gas
Liquid
solid and gas
Liquid and solid

Answer 1

It is Liquid

Reason: Liquid is that form of matter in which the atoms are Closely Packed but still can move on. It is because the Interparticle Forces of Attraction between the Particles of Liquid are Moderate.

Answer 2

Liquid.

Step-by-step explanation:

In a solid the atoms are closely packed , vibrate but remain in a fixed position. In a gas the atoms are moving fast and fill any space they are contained in.