of two different liquids are poured into uncovered identical beakers and let stand for 10 minutes: Liquid X Liquid YWhat's different about liquids X and Y?Your answer should be the one- or two-word name of a physical property.

drops of two different liquids are put on the same surface. Half an hour later, the drops look like this: Liquid A Liquid BNote for advanced students: you may assume neither liquid interacts strongly with the surface.What's different about liquids A and B?Your answer should be the one- or two-word name of a physical property.

Would liquids have the same three properties? If not, what differences might be expected?

A colloid of two or more liquids

Two liquids of densities d1 and d2 are flowing in identical capillary tubes uder the same pressure difference. If t1 and t2 are time taken for the flow of equal quantities (mass) of liquids, then the ratio of coefficient of viscosity of liquids must bed1t1d2t2t1t2d2 d1t2t1d1t1 d2t2−−−−√

Identify a single word that can replace each of the following expressions.Liquid in which a substance dissolvesInsoluble particles that settle to the bottom of a liquidSubstance that dissolves in a liquidMixture that is formed when a solute dissolves in a solventMixture in which the insoluble particles stay mixed throughout another substanceExplain how a colloid differs from a suspension.Copy and complete the diagram opposite by placing the correct term in the lettered boxes.How is homogenised milk different from fresh milk?ThinkIs smog a solution, suspension or colloid? Explain your answer.Cream and butter are both made from milk. What types of mixture are cream and butter?Many products contain chemicals called ‘emulsifiers’. What do you think these chemicals do?