a beaker contains a mixture of sand and salt a student adds water to dissolve the salt which processes can be used to separte out the sand and salt

Answer 1

To separate the sand and salt from the mixture after adding water to dissolve the salt, you can follow these steps:

1. Filtration:

   • Pour the mixture of sand and salt water through a filter paper placed in a funnel. The solid sand will remain on the filter paper, while the saltwater solution (filtrate) will pass through into a container below.

2. Evaporation:

   • To separate the salt from the saltwater solution, heat the filtrate in a saucepan or a beaker on a hot plate. As the water evaporates, salt will be left behind as solid crystals once all the water has evaporated.

These two steps effectively separate the sand and salt from the mixture. The sand is collected as a solid on the filter paper, and the salt is recovered from the evaporated solution.