Examlex
Pets who learn that the sound of an electric can opener signals the arrival of their food illustrate
Diffusion
The process by which molecules move from an area of higher concentration to an area of lower concentration.
Concentration
The amount of a substance per defined space or volume; in a solution, it is the amount of solute dissolved in a unit volume of solvent.
Distilled Water
Water that has been purified through distillation, removing impurities and minerals.
Salt
Molecule consisting of a cation other than hydrogen and an anion other than hydroxide.
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