Foundations of Chemistry
8 terms
Cation
A positively charged ion produced when an atom or molecule loses one or more electrons.
Foundations of ChemistryCentrifugation
A separation technique that uses rapid rotation to generate an effective gravitational field, forcing denser components to the bottom of a…
Foundations of ChemistryChemical Change
A change in which the atoms of one or more substances are rearranged into new substances with different properties.
Foundations of ChemistryChemical Formula
A symbolic notation that states which elements a substance contains and in what proportions, using element symbols and subscripts.
Foundations of ChemistryChemical Property
A characteristic that describes how a substance transforms into a different substance, observable only during a chemical reaction.
Foundations of ChemistryChemical Symbol
The one-, two- or three-letter abbreviation used internationally to represent an element.
Foundations of ChemistryCompound
A pure substance formed when two or more different elements combine chemically in a fixed, whole-number mass ratio.
Foundations of ChemistryCrystallisation
A purification technique in which a solid is separated from solution as an ordered crystalline lattice.