Pure Substances And Formulations Flashcards
What does a pure substance consist of
Only one element or one compound
What does a mixture consist of?
Two or more different substances not chemically joined together
What does an element contain?
One type of atom
What does a compound contain?
Two or more types of atoms joined together
What can the different substances in a mixture be
Elements or compounds
What kind of Melting point do pure substances have
A sharp melting point
What kind of melting point do mixtures have
A range of temperatures
What do impure substances fall in temperature when it freezes look like?
Gradual
What is a formulation?
A mixture which has been designed as a useful product
Examples of formulations
Fuels, cleaning products, paints, medicines, alloys, fertilisers and foods
What happens to the chemicals added in a formulation
They are a carefully measured amount that have a specific purpose in the formulation
