Question

question 1-1
marissa blows up balloons for a party. she decides how big or small to make each balloon. why does the air that she blows into each balloon take up all the space inside the balloon?

• the particles of air have a strong attraction between each other and the balloon
• the particles of air move freely, colliding with each other and the sides of the balloon.
• the particles of air move and increase in size when they have more space in the balloon.
• the particles of air move around and slide past one another and take the shape of the balloon

Explanation:

To solve this, we analyze the properties of gas (air) particles:

• Option 1: Air particles have weak intermolecular attraction, not strong, so this is wrong.
• Option 2: Gas particles move freely, collide with each other and container (balloon) walls. This explains why air fills the balloon's space as particles spread out and collide, occupying the volume.
• Option 3: Gas particles don't increase in size with more space; they spread out (increase volume), so this is wrong.
• Option 4: Particles sliding past each other is a liquid property, not gas. Gases fill the container due to free movement and collisions, not sliding like liquids.

Answer:

The particles of air move freely, colliding with each other and the sides of the balloon.