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Practice Listening: Fill in the Blanks (Type In)
ID: #34081
Short
Chemical Method
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Finally, we take a look at how to mix and unmix at the flick of a switch. Sandrine tells us more. Oil and water don't usually mix, but the new chemical sensitive to light has been added here to them together. When to UV light, the chemical changes its structure and becomes soluble in water. This causes two layers to form with the oil floating on top of the water chemical combo. This method should be cheaper than the current which involves using high energy .
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