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Nat. Review chpt. 2

Chemistry review

QuestionAnswer
Atom The smallest unit of any thing
An atom is made up of _____ Protons, neutrons, and electrons
Element Consists of atoms with the same chemical properties
Molecule Two or more atoms bonded together
Macromolecule A large molecule
Compound Another name for a molecule
Ion Positively or negatively charged atom or molecule
Electrolyte Releases ions when put into water
Mixture A combination of two or more substances
Solution A mixture of solute dissolved into solvent
Solute Dissolved particles in water
Solvent Disolving substance eg. water
Suspension A mixture of two or more substances in liquid that do not dissolve but distribute evenly throughout
Acid Releases hydrogen ions in a solution
Base A substance that binds hydrogen ions
pH scale Used to measuer acidity and basicity
Alkalinity Basicity
Buffer A solution that prevents sharp changes in pH
Cation Postitively charged
Anion Negatively charged
Biochemistry The chemistry of life
Matter Anything that occupies space
Proton is ___ charged Positively
Neutron is ___ charged Neutral
Electron is ___ charged Negatively
What element differentiates organic and inorganic objects? Carbon
Created by: skpoem
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