general

• sodium reaction with oxygen in air


  bright yellow flame - white smoke and powder
• magnesium reaction with oxygen in air


  dazzling white flame - white clouds and powder
• iron reaction with oxygen in air


  glows red hot and burns with sparks
• copper reaction with oxygen in air


  does not burn, but the surface turns black
• carbon reacts with oxygen in air


  glows red hot, reacts slowly
• sulfur reaction with oxygen in air


  burns readily with a blue flame
• hydrogen reaction with oxygen in air


  burns readily with a pale blue flame