Dissolving a Chemical or Physical Change.Dissolution can be a physical or a chemical changebased on the solute and the solvent. If the solute breaks up into individual atoms and reacts with the solvent then a chemical as well as physical change takes place.
People also ask
What is a solution in chemistry?
A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase . A solution consists of a solute and a solvent. The solute is the substance that is dissolved in the solvent.
What is a chemical change in chemistry?
Chemical reactions, also called chemical changes, refer to processes that alter chemical compounds, making new substances out of one or more old substances. To put that another way, the atoms of a substance are rearranged when a chemical change takes place.
Is dissolving salt in water a physical or chemical change?
In contrast, dissolving salt into a glass of water is a chemical change because the salt molecules dissociate, becoming ions. Dissolving both sugar and salt into water is the process of dissolving a solid into a liquid, and removing the water enables the recovery of the salt or sugar.
Is boiling water a chemical change or physical change?
In a physical change, a compound鈥檚 shape may change, but its chemical identity will not. For example, freezing or boiling water is a physical change. Once melted or boiled, the water may be in a different form (solid ice or gaseous water vapor), but it is still water, H 2 O, and it still has the same chemical composition.