EXTRACTION AND USES OF METALS

Question 1

what is a metal ore?

Answer 1

compounds containing metals such as metal oxides

Question 2

What is the method used for each metal determined by?

Answer 2

its position on the reactivity series

Question 3

Metals above carbon form very stable compounds and can only be extracted by….

Answer 3

electrolysis

Question 4

Metals below carbon on the reactivity series can be extracted by a….

Answer 4

displacement reaction with carbon

Question 5

Name three properties of metals:

Answer 5

ductile, conduct heat and electricity

Question 6

Why are alloys stronger?

Answer 6

Because the different sized particles make it difficult for the layers to slide.

Question 7

Name 4 features and uses of copper:

Answer 7

1. good conductor of electricity and ductile so used in wires
2. good heat conductor so used in pans
3. unreactive so used in piped
4. antibacterial properties so used in hospital surfaces

Question 8

Name two features and uses of aluminium:

Answer 8

1. good conductor of heat and unreactive because of aluminium oxide layer making it good for pans
2. low density so used in the aviation industry

Question 9

Name a feature and use of low carbon steel:

Answer 9

strong and malleable so used for ships (can rust)

Question 10

Name a feature and use fo high carbon steel:

Answer 10

very strong so used for cutting tools (very brittle)

Question 11

Name a feature and use of stainless steel:

Answer 11

corrosion resistant to used for cutting tools