Question

A cup has a mixture of iron filings, sand, and salt. How could you separate theses 3 materials? Write out the procedures you would follow and what materials you would need to complete the task.

Answer 1

Explanation:

A cup of mixtures of iron fillings, sand and salt is a mixture who constituents are in the same phase i.e solid.

To separate them out we use the physical properties of the substances.

• First spread out the mixture uniformly over a piece of paper or on the table.
• Pass a bar magnet over it.
• The iron fillings will become attracted to the magnet and separate from the mixture.
• then pour water into the mixture of sand and salt
• the salt will dissolve since sand is made up of quartz which are highly insoluble.
• separate the water solution. Evaporate to dryness and recover the salt.
• the sand is left behind and dried.

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Mixtures brainly.com/question/1832352

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