Chem ch 11

  1. extracting metals from their naturally occurring materials and preparing them for use
    metallurgy
  2. a naturally occurring material containing a metal in sufficient concentration to make its extraction profitable
    ore
  3. what are the four steps in the production of a usefulĀ metal from an ore
    • concentrate
    • reduce
    • refine
    • shape
  4. what process of ore separation involves mixing crushed rock with oil, water, and detergent and agitating it
    flotation
  5. how are alkali metals generally prepared
    electrolysis of their molten chloride salts
  6. one of the most widely used chemicals in the US
    sodium hydroxide
  7. forms a very strong, lightweight metal used in aircraft and spacecraft
    lithium
  8. what chemical process is used today to extract gold from low-grade ores
    cyanide process
  9. alloy consisting of 92.5% silver and 7.5% copper by weight
    sterling silver
  10. what is primarily used as a fuel in nuclear power plants
    uranium
  11. process used to make steel both hard and tuff
    case hardening
  12. substance having electrical conductivity thatĀ  is intermediate between insulators and conductors
    semiconductor
  13. half of the tetrahedrons share two oxygen atoms and the other half share thee oxygen atoms
    amphibole asbestos
  14. two-dimensional silicate sheets result when three of the four oxygen atoms are shared between tetrahedrons
    mica
  15. what substances mix to form window glass
    sodium and calcium silicates
Author
Rayna
ID
344526
Card Set
Chem ch 11
Description
A Beka 12th grade science
Updated