4. Answer the following questions in short.
a. Give two examples of solid-gas mixtures.
b. Explain how a magnet can be used to separate mixtures.
C. Why do we need to separate mixtures?
d. Differentiate between a pure substance and a mixture.
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smoke and dust
Mixtures containing substances that are attracted by magnets can be separated using a magnet. We can separate iron from a mixture of sand and iron, as only the iron is attracted to the magnet.
It is important to be able to separate mixtures to obtain a desired component from the mixture and to be able to better understand how each component...
a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.
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