Why Dissolving Salt Is a Chemical Change Therefore, dissolving salt in water is a chemical change. Free Printable Periodic Tables (PDF and PNG), Main Group Elements – Definition and Importance, List of Electron Configurations of Elements. Why Dissolving Salt Is a Chemical Change Therefore, dissolving salt in water is a chemical change. The dissolution of salt in water: This seems like a physical change because we know we can recover the salt from the water. Even though you can not see the salt, it's still there. NaCl is a salt and when immersed in water its crystal structure breaks and gives hydrated ions ($\ce{Na+}$ and $\ce{Cl-}$). Every time salt dissolves in water heat is needed (or released). If you’re forced to pick a side, most chemists say dissolving a covalent compound (like sugar) is a physical change, but dissolving an ionic compound (like salt) is a chemical change. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Assuming its red cabbage, vinegar will make the juice change colour. I need to qualify this a bit more. In contrast, dissolving a covalent compound like sugar does not result in a chemical reaction. . In physical change matter does not undergo any change in its chemical composition. Assuming its red cabbage, vinegar will make the juice change colour. In contrast, dissolving a covalent compound like sugar does not result in a chemical reaction. Critical Thinking Questions 1. She has taught science courses at the high school, college, and graduate levels. A physical change, on the other hand, results in a change of the material's appearance, but no new chemical products result. Thus, any ionic compound that is soluble in water would experience a chemical change. Dissolving salt in water may be considered a chemical change or a physical change. Now a reaction can be exothermic (burn you) or endothermic (freeze you). Salt dissolving in vinegar is a physical change. Salt dissolves in water. Now as far as i am concerned dissolving salt is a chemical change, the ionic bonds between Sodium and Chlorine ions have broken and the ions are free to move around in the water. A good case could be made that it is both, according to the part of the definition you choose. Baking soda reacts with vinegar to make soda ash, carbon dioxide and water. (a) dissolving sugar in water (b) crushing rock salt (c) burning sulfur (d) digesting a chili dog Classify each of the following as either a physical change or a chemical change. Cite 1 Recommendation Buy Find arrow_forward Is Dissolving Salt in Water a Chemical Change or a Physical Change? Anyway it is discussed in the thread. However, if we look at the microscopic level, we see that the two types of atoms in salt, sodium and chlorine, separate from one another. Water does not dissolve into salt. 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