Foundations of Chemistry
2 terms
Reagent
Foundations of Chemistry
Dimensionless
A substance added to a system to bring about a chemical reaction or to test for the presence of another substance.
Relative Atomic Mass
Foundations of Chemistry
Dimensionless
The weighted average mass of the atoms of an element, expressed relative to one twelfth the mass of a carbon-12 atom.
A_r = Σ(isotope abundance × isotope mass)