Stir stones, chalk and water until the chalk is in suspension. Pour off the chalky water (repeat as required), leaving the heavier stones behind. Filter the chalky water to let clear water pass through, so leaving the chalk in the filter paper.
Use a magnet to remove the iron filings from the mixture, then mix the remaining components with water. The copper sulfate will dissolve but the CaCO3 (chalk powder) will not. Filter the mixture to remove the chalk, then boil the water to recover the copper sulfate.
by the process of SUBLIMATION.....
yes
Use a magnet to remove the iron filings. Filter the remainder to separate the insoluble chalk powder from the water. Wash and dry the iron filings as they will be contaminated. Dry the chalk powder to remove traces of water.
Chalk consists of calcium carbonate. It would be a heterogeneous mixture if colours were added to it.
Sublimation
first, put the mixture in water . salt will dissolve and then allow chalk powder to settle down. Then try decantation.
Use a magnet to remove the iron filings from the mixture, then mix the remaining components with water. The copper sulfate will dissolve but the CaCO3 (chalk powder) will not. Filter the mixture to remove the chalk, then boil the water to recover the copper sulfate.
Pass the mixture through filter paper. The salt water will pass through leaving the chalk behind in the filter paper.
sublimate it and get ammonia gas and hcl acid gas and then solidify
by the process of SUBLIMATION.....
yes
Use a magnet to remove the iron filings... Warm (do not boil) the remaining mixture to evaporate the naphthalene.
First remove iron filings with a magnet. That leaves sand, salt and chalk dust. Add water which dissolves the salt, and filter leaving the sand and chalk dust on the filter paper. Put that back in water and add acid to dissolve the chalk dust (CaCO3) leaving the sand as a solid. Filter to obtain the sand. The chalk dust will now be in the acid as CO2 and H2O and the Ca salt of the acid.
Firstly mix the water well to make sure all of the sugar has dissolved. Then, depending on the weight of the chalk (whether it is in chunks or powder form) it will either sink to the bottom of the mixture of float on top. If the chalk is floating on top, you can simply scoop it out. Otherwise, pour the mixture through some filter paper to separate the chalk from the sugar water. Now, once the chalk is separated, you can boil the water to evaporate it, leaving just the sugar behind.
Use a magnet to remove the iron filings. Filter the remainder to separate the insoluble chalk powder from the water. Wash and dry the iron filings as they will be contaminated. Dry the chalk powder to remove traces of water.