Solid carbon dioxide ('dry ice') and iodine ... solution where the concentration is the same everywhere in the solution. Diffusion in liquids is slower than diffusion in gases because the ...

When a solution evaporates, the water goes into the air but the ... The focus is that matter, whether solid, liquid, or gas, is made up of particles; that dissolving and evaporation happen at the ...

The second contains a solution of the chemical sodium acetate and a small metal disc. When the disc is bent, crystals of sodium acetate begin to form. This process of changing from a liquid to a solid ...