Question

which of these illustrations best represents the particles in a gas? a mystery substance takes the shape of its container but not the volume. which of these could be the mystery substance? (select all that apply).

Explanation:

Step1: Recall gas particle characteristics

Gas particles are far - apart and move freely.

Step2: Analyze illustrations

In option a, the particles are far - apart, which is characteristic of gas particles.

Step3: Recall properties of substances

Substances that take the shape of their container but not the volume are liquids and gases.

Step4: Identify correct substances

Milk (a) is a liquid, steam (c) is a gas, water (d) is a liquid, air (f) is a gas. They all take the shape of their container but not the volume. A wooden spoon (b) and a penny (e) are solids and do not have this property.

Answer:

For the first question: a
For the second question: a, c, d, f