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Answer:
Types of Mixtures and Separation Technique
Types of Mixtures
When you combine dried tea leaves with hot water, you initially form a heterogeneous mixture. This is because you can visibly distinguish the tea leaves from the water.
Once you add sugar and ice, the mixture becomes more complex. Sugar dissolves in the water, creating a homogeneous solution (sugar and water). However, the tea leaves remain undissolved, so the overall mixture is still considered heterogeneous.
Separation Technique: Filtration
To extract the dried tea leaves from the hot water, you would use filtration. This technique involves passing the mixture through a porous material, such as filter paper or a sieve, which traps the solid particles (tea leaves) while allowing the liquid (tea infused water) to pass through.
Reason for using filtration:
* Particle size difference: Tea leaves are significantly larger than the particles of water and dissolved sugar.
* Separation of solid from liquid: Filtration effectively separates the solid tea leaves from the liquid portion.
Sieving would not be the most appropriate technique in this case because the tea leaves are relatively small and might pass through the holes of a sieve.
Note: While filtration separates the tea leaves, the resulting tea liquid still contains dissolved substances like sugar and tea compounds. To further purify the tea, techniques like distillation or chromatography could be employed.