![]() Common examples of alloys include bronze, brass and steels. A more technical definition of an alloy is 'a partial or complete solid solution of one or more elements in a metallic matrix'. Alloys - mixtures in which the main element (or, usually, elements) are metal(s).Colloids are very important in biology and medicine. There are many naturally occuring colloids, e.g. Colloids - heterogeneous mixtures in which one is substance microscopically dispersed evenly throughout another substance (for comparison, the size of the particles of 'solute' are greater than in the case of a solution, but much smaller than in the case of a suspension). ![]() ![]()
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