Extracting Metals

Question 1

A___containing a reasonable amount of a metal is a____ ___.

Answer 1

1. rock

2. Metal ore

Question 2

Some metals are so unreactive that they___ __ combine with other elements(e.g. Gold,silver, platinum)’and so are found in their_____ ____.

Answer 2

1. Do not

2. Native state

Question 3

Metals are found in the_____ ____ and most of them are____ with other elements, usually oxygen, so they must be chemically separated from their_____.

Answer 3

1. Earth’s crust
2. combined
3. Compounds

Question 4

They way in which we extract metals depends on its place in the______ _____.

Answer 4

Reactivity series

Question 5

A more reactive metal will displace a____ metal from its compound in general.

Answer 5

Less

Question 6

Carbon( a non metal) will_____ a less reactive from its_____.

Answer 6

Displace, oxide

Question 7

We use carbon to extract metals from their ores__________.

Answer 7

Commercially

Question 8

Many metals are found in their____ ____ form, like copper, lead and zinc. Because carbon is more reactive than these metals, we can use it to extract them, from their ores.

Answer 8

Metal oxides

Question 9

When you heat the metal oxide with the carbon, the carbon removes the_____ to form carbon dioxide,leaving the _____ element behind.

Answer 9

Oxygen, pure

Question 10

We call the removal of oxygen this way a_______ _____.

Answer 10

Reduction removal