There are a lot of separation processes. To name a few, these can be distillation, centrifugation, extraction, membrane or sorption process and many other. To know which is the best technique, you should know the property between two substances that have a stark difference. In this case, it is the polarity. Ethyl alcohol is more polar than ethyl ester and less dense. Thus, these two won't mix. So, take advantage of their density difference by decantation or centrifugation.
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I just finished a unit on Scientific Method in my science class! Anyway, it's defined in the screenshots below. Hope this helps!
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So she can have something to reach or look forward to.
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Tbh I would pick A because the liquid* decreases. B doesn’t increase
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Equation 2, because K being more reactive, exchanges position with Pb in PbNO3.
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