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Physical Separationreversible - can be separated by physical means - E g shaking a bottle of Greek salad dressing, the different ingredients mix but don't form a new substance Chemical Separation irreversible - can be separated by chemical means - E g burning of wood or coal
X-MOL，Enhanced Photoexcited Carrier Separation in Oxygen-Doped ZnIn S Nanosheets for Hydrogen Evolution Yang, Wenlong; Zhang, Lei; Xie
Students learn how to classify materials as mixtures, elements or compounds and identify the properties of each type The concept of separation of mixtures is also introduced since nearly every element or compound is found naturally in an impure state such as a mixture of two or more substances, and it is common that chemical engineers use
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