yes, just evaporate water and you are left with sand
no it is irreversible change
Because - you can simply evaporate the water by heating it, and collect the water in a separate vessel - leaving the dry sand intact.
You get a mixture of salt and sand. Nothing more happens.
That depends on what is being mixed together. Two examples of this are: If you mix sand, gravel, and water it is reversible and you can separate the mixture back to its original three parts. If you mix sand, gravel, water, and cement powder it is not reversible as the water will react with the cement powder creating liquid cement and the sand and gravel will form concrete with the liquid cement. After a few hours the liquid cement in the concrete will set and the concrete mixture will become as hard as rock. It is now no longer possible to separate the mixture back to its original four parts.
This is a reversible process.
because it is reversible and no new substances are formed
reversible?
no it is irreversible change
you get salty sand water
is sieving sand from stones reversible?
Because - you can simply evaporate the water by heating it, and collect the water in a separate vessel - leaving the dry sand intact.
...wet sand...?
Irreversible
If you mix cement ,sand and water you get mortar If you mix cement and stone pebbles or chips you get concrete Concrete.Sometimes gravel is mixed with it, too.
You get a mixture of salt and sand. Nothing more happens.
That depends on what is being mixed together. Two examples of this are: If you mix sand, gravel, and water it is reversible and you can separate the mixture back to its original three parts. If you mix sand, gravel, water, and cement powder it is not reversible as the water will react with the cement powder creating liquid cement and the sand and gravel will form concrete with the liquid cement. After a few hours the liquid cement in the concrete will set and the concrete mixture will become as hard as rock. It is now no longer possible to separate the mixture back to its original four parts.
No, sand and water mixed together don't make a solution