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Bio Terms 2.1&2.2

TermDefinition
Atom The smallest unit of an element that maintains the chemical properties of that element
Element A substance the cannot be separated or broken down into simpler substances by chemical means
Compound A substances mad up of atoms of two or more different elements joined by chemical bonds
Ion At atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
Ionic Bond The attractive force between oppositely charged ions, which form when elections are transferred from one atom to another
Covalent Bond A bond formed wen atoms share one or more pairs of electrons
Molecule A group of atoms that are held together by chemical forces
Hydrogen Bond The intermolecular force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared of another molecule
Cohesion The force that holds molecules of a single material together
Adhesion the attractive forces between two bodies of different substances that are in contact with each other
Solution A homogeneous mixture throughout which two or more substances are uniformly dispersed
Solvent In a solution, the substance in which the solute dissolves
Solute In a solution the substance that dissolves the solvent
Acid Any compound that increases the number of hydronium ions when dissolved in water
Base Any compound that increases the number of hydroxide ions when dissolved in water
pH A measurement of acidity
Created by: BodkinG26
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