Definitions

• What is a chromatogram?

  A graph showing separation results
• What is chromatography used for?

  To separate mixtures based on distribution
• What does flame emission spectroscopy analyze?

  Metal ions in solutions
• What is the purpose of a flame test?

  To identify metal ions qualitatively
• How is a flame test conducted?

  Insert nichrome wire loop into flame
• What is a formulation in chemistry?

  A designed mixture for a useful product
• What characterizes an impure substance?

  Contains two or more unbonded components
• What are instrumental methods used for?

  To detect and identify elements and compounds
• What does litmus paper indicate?

  Acidity or alkalinity of a substance
• What is the mobile phase in chromatography?

  The phase where molecules can move
• What is precipitation in chemistry?

  Creation of a solid from a solution
• What defines a pure substance?

  A single element or compound only
• What does the Rf value represent?

  Distance moved by compound over solvent
• What is the stationary phase in chromatography?

  The phase where molecules are stationary