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A homogenizer works by breaking down the fat globules in the milk and forcing them to regroup, then breaking up the layers that form so the globules inside of the solution remain at the desired sizes, explains How Stuff ... More »

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When zinc in its metallic form and hydrochloric acid are combined, they form hydrogen gas and an aqueous solution of zinc chloride. This type of a reaction is called an oxidation reduction reaction. More »

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A Soxhlet extractor works by boiling a solution that has a solute of limited solubility in a percolator, then cooling and collecting the condensate in a reservoir from which the concentrated solute can be extracted. A si... More »

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A confirmatory test is a controlled chemical reaction used to determine the presence of a specific ion or compound in a solution or substance. Confirmatory tests are commonly used after an experiment in a laboratory sett... More »

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Blue litmus paper remains blue when contacted by an alkaline solution, while red litmus paper turns blue. Litmus paper may also be used to determine the acidity and neutrality of a solution. More »

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Litmus paper changes colors in response to an acidic or base solution. Acidic solutions result in a color change that is red. Neutral solutions yield a purple color. More »

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The picric acid test for reducing sugar is a method for detecting the presence of certain kinds of sugar in a solution. Picric acid is added to potash in one-to-one proportions to produce picrate of potassium, which chan... More »

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