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Simple diffusion is the movement of a molecules from an area of high concentration to an area of low concentration across a semipermeable membrane. Diffusion happens in liquids and gases as their particle...

1. You would use chromatography, the different colours have different affinities depending on the solvent you use. So different colours will travel longer than other on your chromatogram (support).2) Y...

Hardwoods: oak, mahogany, maple, ash, birch, etc. Softwoods: pine, spruce, cedar, fir, etc. Disallow any manufactured boards, e.g. plywood, MDF, etc.

First of all, it is important to understand that the indicative and subjunctive are both moods. This is something that reflects a speakers attitude towards a statement. The indicative mood is used towards...

The key to this question is to stay calm and not let yourself be intimidated. You can use the information provided in the question to give you a clear direction to head in- you want to factorise out root ...