Solids have particles that....?
Solids have....?

Liquids have particles that....?
Liquids have....?

Gases have particles that....?
Gases have....?

Particles can either be...?

What is an ion?

What is the difference between an atom and a molecule?

Why does the melting and boiling points of a PURE substance always occur at a constant temperature?

Why does diffusion not take place in solids but in liquids and gases only? What diffuses faster, gases or liquids?

What diffuses faster, ammonia solution (NH3) or HCL and why?

What is the diffusion rate?

What 5 methods are used to separate mixtures and when are they used?

What is residue?

What is the difference between simple and fractional distillation?

Describe fractional distillation using a mixture of ethanol and water.

Describe chromatography briefly.

The speed at which the components, during chromatography, depends on...

What is the retention factor and how can it be used?

What is a pure substance and what is its importance?

How is purity assessed?