A common question about laser eye surgery is simply, âHow much is LASIK?â The best answer is this: There is no single answer. The cost of LASIK varies widely from the incredible $299 per eye on TV commercials to the equally incredible $5,000 per eye.
A alloy is a mixture or solid solution of two metals or a metal and a non metal. Mixtures of metals, any metals typically when one or more are molten.
1 Colloids are very important in biology and medicine. 2  Alloys-mixtures in which the main elememt (or elements) are metal(s). 3  A more technical definition of an alloy is a partial or complete solid solution of one or more elements in a metallic matrix.hese include: 1  Homogeneous Mixtures-in which the two or more substances that form the mixture are evenly distributed throughout the mixture, e.g. vinegar is a homogeneous mixture of ethanoic acid and water.