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Aqueous - GCSE Chemistry Definition

Reviewed by: Philippa Platt

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In GCSE Chemistry, the term "aqueous" refers to a substance that is dissolved in water. It is denoted by the symbol (aq) in chemical equations. An aqueous solution forms when a solute, which can be a solid, liquid, or gas, is mixed with water, the solvent, and is uniformly dispersed at the molecular level. This results in a homogeneous mixture where the solute doesn't settle out or separate easily.

Understanding aqueous solutions is important for studying reactions that occur in water, as it is a common solvent in chemical processes and biological systems.

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Philippa Platt

Reviewer: Philippa Platt

Expertise: Chemistry Content Creator

Philippa has worked as a GCSE and A level chemistry teacher and tutor for over thirteen years. She studied chemistry and sport science at Loughborough University graduating in 2007 having also completed her PGCE in science. Throughout her time as a teacher she was incharge of a boarding house for five years and coached many teams in a variety of sports. When not producing resources with the chemistry team, Philippa enjoys being active outside with her young family and is a very keen gardener

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