Chp.1 Separating Mixtures And Flame Tests Flashcards
What is a pure substance?
1 Element or Compound that isn’t mixed
What is a mixture?
2 or more Substances mixed which are easy to separate
What is a formulation?
• A useful mixture
• Formed by mixing together several different substances
•Careful measurements
• product should have required properties
What is a Solute & Solvent?
Solute= Soluble substance ( dissolves in solvent= Liquid in which Solute dissolves)
What is a Solution?
Product of a solute dissolving in a solvent
What is an atom
An atom is the smallest particle of an element
What is a molecule
Two or more atoms that are chemically combined
What is an element
A substance that contains of only one type of atom
What is a compound?
A substance that consists of two or more elements
What is a melting point?
The temp at which a solid changes into a liquid
What is a boiling point?
Temp at which liquid changes into gas
What are miscible liquids?
Liquids that mix eg milk and water
Description of Filtration?
•works for insoluble solids+liquids
•liquid=filtrate
•solids=residue
Description of evaporation?
•works for solvents+solutes
•heat is added to an evaporating basin to make the solvent vaporise
Description of distillation?
•Used to separate two miscible liquids with similar boiling points
•Liebig condenser is used
