A student in your class has decided to dissolve Epsom salts in water and observe the crystals that are left behind after the water evaporates. Is this an example of a chemical change? Use evidence and scientific reasoning to support your claim.

Dissolving epsom salts in water and observing the crystals that are left behind after the water evaporates is not a chemical change.

CHEMICAL CHANGE:

Changes that occur in nature can either be physical or chemical. Physical change are those changes that does not involve the chemical property of substances involved. Chemical change, on the other hand, alters the chemical composition of the substances involved. Examples are rusting. Chemical change forms a new product and are usually irreversible. According to this question, dissolving epsom salts in water is not an example of chemical change because it does not involve the formation of new substances.

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Physical change

Explanation:

Dissolution of salt in water is a typical example of physical change and not a chemical change.

In a chemical change new products are formed which are different from the reactants.

In a physical change, the state of matter changes from one form to another.

Since this is a change in state, a physical change has occurred. Also, the reaction is easily reversible simply by evaporation. Most chemical changes are not easily reversible.

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Answerchemical;