Electrolytes possess the power of coagulating solutions of colloids such as albumen and arsenious sulphide. [Please select]
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The salts that are deposited by mere chemical reaction without the intervention of colloids appear in the form of sharply defined angular crystals, and hence the rough, jagged crystals of oxalate of lime or ammonia-magnesium phosphate. [Please select]
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Colloids that are undergoing decomposition are also specially powerful, so that the presence of bacteria or fungi causing fermentation is an important factor. [Please select]
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