Question

matter can be in four states - solid, liquid, gas, and plasma. solid: solids have a fixed shape, like a rock. their particles are tightly packed. liquid: liquids can flow and take the shape of their container, like water. particles move around freely. gas: gases, such as the air we breathe, have no fixed shape, and their particles move freely. plasma: plasma is a hot, charged gas found in lightning and stars. it has no fixed shape, and particles move rapidly. choose the correct answer. an inflated balloon is filled with helium. what state of matter is the helium in the balloon? liquid gas solid

Explanation:

Gases have no fixed shape and their particles move freely. Helium in an inflated balloon fits this description of a gas state of matter.

Answer:

gas