Examlex
Fuel cells are based on the tendency of some elements to gain electrons from gasoline.
Neutral Substance
A chemical compound that is neither acidic nor basic in nature, often having a pH level of around 7.
Acidic Substance
A substance with a pH less than 7, which donates hydrogen ions when dissolved in water.
Basic Substance
A fundamental material or compound that is essential for a particular biological function or structure; often refers to simple, key molecules in biochemistry.
Amino Acids
Organic compounds that serve as the building blocks for proteins, essential to numerous processes in living organisms.
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