Dissolving is a physical change.
no because it is reversible. If you dissolve out the water you are left with NaCl. A change that is reversible is a physical change.
If you dissolve salt in water you have not changed the materials chemically.
It is a physical change because the chalk is still chemically the same substance whether it is in solid form or dispersed in water. The molecules in the chalk are not altered by the process of being put in water.
No, salt will (physically) dissolve in water, without changing chemical properties
The physical change that happens to the water from the dye solution is that it gets colored. The water molecules themselves do not change chemically, but they become colored by the dye molecules that dissolve in the water.
Bears do not dissolve in water. They are mammals with a physical structure that is not soluble in water.
When orange drink crystals are stirred into a pitcher of water, it is a physical change. The crystals dissolve in the water, resulting in a mixture, but the chemical composition of the substances does not change. This process is reversible, as the water can be evaporated to recover the original components.
The process of sugar dissolving in water is a physical change because no new substances are formed. The sugar molecules simply mix with the water molecules to create a homogeneous solution.
Physical
A simple example is any substance which is soluble in a liquid. If you dissolve salt (sodium chloride) in water it will undergo a physical change. If you then evaporate the water the salt will reappear. All substances are capable of undergoing a physical or chemical change. If you heat salt it will become liquid, a physical change, if you then pass an electrical current through it it will break down into sodium and chlorine, a chemical change.
As salt grains dissolve in water, they break apart and the individual salt ions (sodium and chloride) become surrounded by water molecules, forming a solution. This process is a physical change, not a chemical reaction, as the chemical composition of salt remains the same.
when we dissolve a substance then first of all there may occur physical change like shape,colour,temperature etc. these changes are called physical changes.