Pure substance is something that only contains onecomponent or element- not mixed with anything else
Boiling or melting point tells you how pure a substance is
A pure substance will melt or boil at a specific temp
test purity measure melting or boiling point and compare it to points of pure substance
closer measured values the purer
Formulation are useful mixtures with precise purpose that are made by following a formula
Each component in a formulation is present in a measured quantity and contributes to the properties of the formulation so it meets it’s required function