How can a mixture of iron pieces, sand, table salt, and paraffin be separated?

1. Use a magnet to separate the iron pieces from the mixture. The iron pieces will be attracted to the magnet and can be easily removed.

2. Add water to the mixture to dissolve the table salt. Stir the mixture to ensure the salt is fully dissolved.

3. Filter the mixture to separate the sand from the saltwater solution. The sand will be left behind in the filter while the saltwater solution passes through.

4. Boil the saltwater solution to evaporate the water and leave behind the table salt.

5. The paraffin can be separated from the remaining mixture by melting it and allowing it to solidify again. The paraffin will separate as a solid layer on top of the mixture and can be easily removed.

1. Handpicking:

- Separate the larger iron pieces by handpicking.

2. Magnetic Separation:

- Use a magnet to separate the iron pieces from the rest of the mixture.

3. Water Separation:

- Place the remaining mixture in water.
- Paraffin will float to the top (lighter than water).
- Sand will sink to the bottom (heavier than water).
- Table salt will dissolve in water.

4. Filtration:

- Filter the water to separate the paraffin and sand.
- Paraffin will remain on the filter paper.
- Sand will pass through the filter paper.

5. Evaporation:

- Evaporate the water from the table salt solution to obtain solid table salt crystals.

6. Vacuum Filtration:

- Alternatively, use vacuum filtration to separate the paraffin from the sand.
- Place a filter paper on a Buchner funnel and apply a vacuum.
- Pour the mixture onto the filter paper.
- Paraffin will be sucked through the filter paper, while sand will remain on top.