Chemical Change: Zinc Reacts with Acid to Form Zinc Sulfate & Hydrogen Gas.

This scenario describes a chemical change. Here's why: - **Reactants and Products:** In this reaction, solid zinc (Zn) and sulfuric acid (H2SO4) react to form zinc sulfate (ZnSO4) and hydrogen gas (H2). - **New Substances:** New substances are formed during the reaction: zinc sulfate and hydrogen gas are not present before the reaction. - **Chemical Bonds:** The reaction involves breaking and forming of chemical bonds, a clear indicator of a chemical change. The overall chemical equation for this reaction is: \[ \text{Zn (s) + H}_2\text{SO}_4\text{ (aq) → ZnSO}_4\text{ (aq) + H}_2\text{ (g)} \] This transformation indicates a change in the chemical composition of the substances involved, confirming it as a chemical change.