Topic 4- Extracting Metals And Equalibria

Question 1

What do metals have in common?

Answer 1

Electrons in their outermost shell they want to get rid of

Question 2

What type of ions do metals form?

Answer 2

Positive ions

Question 3

What does the term mean ‘the reactivity of a metal’?

Answer 3

How easily it forms positive ions

Question 4

Name the elements on the reactivity series in order?

(Please stop calling my amazingly cool zebra in her car silly girl)

Answer 4

K- Potassium
Na- sodium
Ca- calcium
Mg- magnesium
Al- aluminium
C- carbon 
Zn- zinc
Fe- Iron 
H- hydrogen
Cu- copper
Ag- silver 
Au- Gold

Question 5

What does reacting the metals with acid or water show? Why do we do it?

Answer 5

To see how fast or violent the reactions are and to compare their relativity reactivity

Question 6

What does metals and acids form?

Answer 6

Salt and hydrogen gas

Question 7

What happens as we go down the series reacting it with an acid?

Answer 7

It gets less violent

Question 8

What is another method to see how reactive a metal is?

Answer 8

Measuring the temperature change

Question 9

How does measuring temperature change show the most reactive metal?

Answer 9

The most reactive metals produce the most heat

Question 10

When measuring temperature change what do you do to make it a fair test?

Answer 10

You must ensure each metal sample you use has:

• same mass
• same surface area
• same type/concentration of acid each time

Question 11

What does metals and water produce?

Answer 11

Metal hydroxides and hydrogen

Question 12

Which metals on reactivity scale won’t react at all with water? What about Al?

Answer 12

Metals below carbon

Aluminium reacts at room temperature but it does normally react at all

Question 13

Which metals react with water on reactivity series?

Answer 13

Metals above aluminium

Question 14

Define displacement

Answer 14

When more reactive metals displace less reactive one

Question 15

Define inert

Answer 15

Unreactive

Question 16

Define oxidation

Answer 16

The process of gaining oxygen

Question 17

Define reduction

Answer 17

The loss of oxygen

Question 18

What happens when metals are exposed to oxygen?

Answer 18

Most metals are fairly reactive, when exposed to oxygen they produce a metal oxide

Question 19

What is metals don’t react with oxygen?

Answer 19

Unreactive metals (i.e. gold) are pure metals, they are too unreactive to react with oxygen

Question 20

How can we reduce our metal oxides to form pure metal?

Answer 20

• React the metal oxide with carbon

- The carbon will take the oxygen form the metal to form carbon dioxide

Question 21

Can you react carbon with all the metals on the reactivity series?

Answer 21

No you can only react the metals which are less reactive than carbon (I.e. metals below carbon in the reactivity series)

Question 22

What other way can we turn a metal oxide to a pure metal without carbon?

Answer 22

Electrolysis

Question 23

Why do we find pure gold in the ground, but not pure iron?

Answer 23

Gold is unreactive, so doesn’t react with any other elements

Iron is reactive enough to react with oxygen so is oxidised to iron oxide