A chemical change is a change in which something new is formed (irreversible).Salt DOES dissolve in water. That doesn't mean that a chemical change has taken place however. A chemical change is where bonds are broken and NEW BONDS FORM causing a rearrangement of atoms into new molecules. Dissolving is a physical process where the substance retains its own physical characteristics but just changes state or shape etc. When salt is put in water, the sodium and chloride atoms are pulled apart by the water. They disappear. But if the water is taken away, the sodium and chloride atoms rejoin with each other.
A chemical change is a change in which something new is formed (irreversible).Salt DOES dissolve in water. That doesn't mean that a chemical change has taken place however. A chemical change is where bonds are broken and NEW BONDS FORM causing a rearrangement of atoms into new molecules. Dissolving is a physical process where the substance retains its own physical characteristics but just changes state or shape etc. When salt is put in water, the sodium and chloride atoms are pulled apart by the water. They disappear. But if the water is taken away, the sodium and chloride atoms rejoin with each other.
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