<Ul> <Li> Gas in liquid: <Ul> <Li> Oxygen in water </Li> <Li> Carbon dioxide in water--a less simple example, because the solution is accompanied by a chemical reaction (formation of ions). Note also that the visible bubbles in carbonated water are not the dissolved gas, but only an effervescence of carbon dioxide that has come out of solution; the dissolved gas itself is not visible since it is dissolved on a molecular level . </Li> </Ul> </Li> <Li> Liquid in liquid: <Ul> <Li> The mixing of two or more substances of the same chemistry but different concentrations to form a constant . (Homogenization of solutions) </Li> <Li> Alcoholic beverages are basically solutions of ethanol in water . </Li> </Ul> </Li> <Li> Solid in liquid: <Ul> <Li> Sucrose (table sugar) in water </Li> <Li> Sodium chloride (NaCl) (table salt) or any other salt in water, which forms an electrolyte: When dissolving, salt dissociates into ions . </Li> </Ul> </Li> <Li> Solutions in water are especially common . </Li> </Ul> <Li> Gas in liquid: <Ul> <Li> Oxygen in water </Li> <Li> Carbon dioxide in water--a less simple example, because the solution is accompanied by a chemical reaction (formation of ions). Note also that the visible bubbles in carbonated water are not the dissolved gas, but only an effervescence of carbon dioxide that has come out of solution; the dissolved gas itself is not visible since it is dissolved on a molecular level . </Li> </Ul> </Li> <Ul> <Li> Oxygen in water </Li> <Li> Carbon dioxide in water--a less simple example, because the solution is accompanied by a chemical reaction (formation of ions). Note also that the visible bubbles in carbonated water are not the dissolved gas, but only an effervescence of carbon dioxide that has come out of solution; the dissolved gas itself is not visible since it is dissolved on a molecular level . </Li> </Ul> <Li> Oxygen in water </Li>

When is a mixture considered to be a solution examples