Atoms and elements | The Atomic Theory

General Chemistry 1 - Atoms and elements

Classify each of the following into elements, compounds, heterogeneous mixture, or homogeneous mixture:

  • salt water
  • silver
  • salt and sugar
  • air
  • carbon dioxide
  • diamond (C)
  • sodium chloride
  • oil and water
  • ice
  • salt water: homogeneous mixture
  • silver (Ag): element
  • salt and sugar: heterogeneous mixture
  • air: homogeneous mixture
  • carbon dioxide (CO2): compound
  • diamond (C): element
  • sodium chloride (NaCl): compound
  • oil and water: heterogeneous mixture
  • ice (H2O): compound