Question

the models show the three states of matter.
model 1
model 2
model 3
which model can be used to represent the movement of particles in a liquid?
○ model 3 because the particles are vibrating but keep a definite shape.
○ model 2 because the particles are close together but have no definite shape.
○ model 1 because the particles are moving freely and keep the shape of the container.
○ model 2 because the particles slide past each other and take the shape of the container.

Explanation:

To determine the model for liquid particles:

• Model 1: Particles move freely (gas, no definite shape/volume).
• Model 2: Particles are close (like liquid) but can slide past (take container shape, no definite shape).
• Model 3: Particles vibrate in fixed positions (solid, definite shape).

The liquid’s particle behavior (close, slide past, no definite shape) matches Model 2’s description ("particles are close together but have no definite shape"). Other options: Model 1 is gas, Model 3 is solid, and the last Model 2 option’s "take container shape" is correct but the first part of its reasoning ("slide past") is consistent with liquid, but the key is the particle arrangement (close, no definite shape) matching Model 2’s initial description. Wait, recheck: The option "Model 2 because the particles are close together but have no definite shape" directly aligns with liquid’s properties (liquid particles are close, can move past each other, no definite shape; solid has definite shape, gas has far-apart particles). So this option correctly identifies Model 2 for liquid.

Answer:

The correct option is: "Model 2 because the particles are close together but have no definite shape." (Assuming the third option in the list, as per the text: the third radio button option is "Model 2 because the particles are close together but have no definite shape.")