Science, Tech, Math › Science Solution Definition in Chemistry Share Flipboard Email Print Heinrich van den Berg/Getty Images Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate by Anne Marie Helmenstine, Ph.D. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Updated May 08, 2019 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. The amount of solute that can be dissolved in solvent is called its solubility. For example, in a saline solution, salt is the solute dissolved in water as the solvent. For solutions with components in the same phase, the substances present in lower concentration are solutes, while the substance present in highest abundance is the solvent. Using air as an example, oxygen and carbon dioxide gases are solutes, while nitrogen gas is the solvent. Characteristics of a Solution A chemical solution exhibits several properties: A solution consists of a homogeneous mixture.A solution is composed of one phase (e.g., solid, liquid, gas).Particles in a solution are not visible to the naked eye.A solution does not scatter a light beam.Components of a solution cannot be separated using simple mechanical filtration. Solution Examples Any two substances which can be evenly mixed may form a solution. Even though materials of different phases may combine to form a solution, the end result always exists of a single phase. An example of a solid solution is brass. An example of a liquid solution is aqueous hydrochloric acid (HCl in water). An example of a gaseous solution is air. Solution Type Example gas-gas air gas-liquid carbon dioxide in soda gas-solid hydrogen gas in palladium metal liquid-liquid gasoline solid-liquid sugar in water liquid-solid mercury dental amalgam solid-solid sterling silver Continue Reading Understand What Solubility Means in Chemistry Dissolve Definition in Chemistry Chemistry Vocabulary Terms You Should Know What Concentrated Means in Chemistry What's the Difference Between Heterogeneous and Homogeneous Mixtures? Heterogeneous and Homogeneous Mixtures: What's the Difference? What It Means When Something Crystallizes Find Chemistry Definitions From A to Z A Solute Is a Substance That Is Dissolved in a Solution What Is a Mixture in Chemistry? What Is a Heterogenous Mixture? Get a Clear Definition and Examples Is Brass a Solution? What a Mixture Is (And Is Not) in Science What Are Colligative Properties? Everything You Need to Know About Saturated Solutions in Chemistry What Is a Universal Solvent?