science

Card Set Information

Author:
freezinged
ID:
155916
Filename:
science
Updated:
2012-05-26 12:27:08
Tags:
Reactions metals
Folders:

Description:
Reactions of metals
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  1. What happens to reaction is made with metal and air?
    The metal tarnishes
  2. What happens to Potassium, sodium, calcium and magnesium when they react with air/oxygen?
    They burn easily with a bright flame
  3. What happens to Aluminium, zinc, iron, lead and copper when they react with air/oxygen?
    They tarnish when heated
  4. What happens to gold and silver when they react with air/oxygen?
    Nothing
  5. What is the equation for metals reacting with air?
    • metals + oxygen -> metal oxide
    • eg:
    • 2Zn + 02 -> 2Zn0
  6. What type of water do Potassium, sodium and calcium react with?
    Cold water
  7. What type of water do Aluminium, zinc and iron react with?
    Steam
  8. What type of water do Lead, copper, silver and gold react with?
    It has no reaction
  9. What is the equation for metals reacting with water?
    • Metal + water -> Metal hydroxide + hydrogen
    • eg
    • 2K + H20 -> 2K0 + H
  10. What is the equation for metals reacting with acid?
    • Metal + acid -> Salt + Hydrogen
    • eg
    • Zn + H2SO4 -> ZnSO4 + H2

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