LeadbyGuillermo

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** Questions´ answer **
 * 1) Aluminium:13
 * 2) Beryllium: Copper,aluminium,iron,cobalt,and nickel
 * 3) Chromimum : More than 12%.
 * 4) Cobalt : Ferromagnetic metal, association with nickel..
 * 5) Copper : It is a good electricity conductor
 * 6) Foundries: It’s a factory that produced molty castings.
 * 7) Gold: Tutankamon
 * 8) Iron : Glove,horseshoe hammer,screw driver brick
 * 9) Magnesium: we can find it in salts and dioxides.
 * 10) Mercury:no awnser in the video
 * 11) Nickel : Electric guitar’s strings.
 * 12) Nickel Silver:silver.
 * 13) Platinum:russia, north america and south África
 * 14) Silver: United States, Canada, China, Russia, Australia, Peru,Mexico, Poland.
 * 15) Steel: Machines, Automobiles.
 * 16) Tin:gray tin and White tin
 * 17) Titanium: Aeroplanes, submarines.and cars
 * 18) Zinc:30

I can´t see the videos the videos:
 * 1) Brass
 * 2) Bronze
 * 3) Electro alloy