4. Which method is better for separating husk from wheat flour, sieving or winnowing? Why? 5. What are the different properties that you would consider to separate a solid-solid mixture?

Which other elements contain the same number of outer electrons as sodium

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

One similarity and one difference between an element and a mixture of elements