Metals

Question 1

What are Metals used for

Answer 1

To speed up reactions

Question 2

What are ores?

Answer 2

Naturally occurring rocks that contain metals or metal compounds in sufficient amounts to make them worthwhile extracting them.

Question 3

What are some properties of metals?

Answer 3

Lestre (shiny)
Malleable (able to be moulded)
Ducitile(drawn into wires)
Thermal conductor
Electrical conductor

Question 4

What does a metallic structure exist as

Answer 4

a giant lattice of positively charged ions delocalised outer electrons

Question 5

What is the Order of Reactivity

Answer 5

Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Zinc
Iron
Copper
Silver
Gold

Question 6

What is Electrolysis

Answer 6

Electrolysis is using electrolysis to separate a compound into its elements

Question 7

What metals are extracted using electrolysis

PoSocCaMaAl

Answer 7

Potassium
Sodium
Calcium
Magnesium
Aluminium

Question 8

What metals are extracted using heat and carbon/carbon monoxide

Answer 8

Zinc
Iron
Lead
Copper

Question 9

What metals are extracted using heat alone?

Answer 9

Mercury
silver
gold
Platinum

Question 10

What is an alloy?

Answer 10

a mixture of a metal and at least one other element (steel=carbon + others)

Question 11

In ionic Formula equations, what kind of states do charges go on?

Answer 11

aqueous solutions and ionic solids

Question 12

What is oxidation

Answer 12

the loss of electrons
the gain of oxygen

Question 13

What is reduction

Answer 13

the heating of a metal
The loss of oxygen
The gain of electrons

Question 14

Where do electrons flow

Answer 14

Through the wires of a device

Question 15

What is electricity

Answer 15

the flow of charged particles

Question 16

What is an electrolyte

Answer 16

a liquid that conducts electricity and completes the circuit

Question 17

What is the purpose of the ion bridge

Answer 17

to complete the circuit

Question 18

Why must direct current b used for electrolysis

Answer 18

DC allows the products to form separate electrodes

Question 19

What feature of Metallic bonding allows metals to conduct electricity

Answer 19

Delocalised outer electrons

Question 20

Name 2 metals that do not react with oxygen

Answer 20

Gold and silver

Question 21

Which metals do not react with acid?

Answer 21

Metals above hydrogen in the EC series

Question 22

Which metals react with water

Answer 22

Metals above and including magnesium

Question 23

How could you determine the order of reactivity of the metals

Answer 23

React the metals with water, acid and hydrogen

Question 24

How would you use a metal to produce a soluble salt

Answer 24

Add acid until it no longer reacts with the metal

Then filter the soluition and evaporate it

Question 25

How would you use a metal to produce a soluble salt

Answer 25

Add acid until it no longer reacts with the metal Then filter the solution and evaporate it

Question 26

What are the 3 methods used to extract metals from their ores

Answer 26

Electrolysis Heating with carbon or carbon monoxide Heat alone

Question 27

What happens to the metal ions during the extraction of metals

Answer 27

reduction

Question 28

What happens to the positive ions during electrolysis

Answer 28

They move to the negative electrode and are reduced

Question 29

What happens to the negative ions during electrolysis

Answer 29

They move to the positive electrode and are oxidised

Question 30

What is a 1/2 cell

Answer 30

When we only have 1/2 of a reaction and its not joined to the other half

Question 31

How could you produce a bigger voltage in a cell?

Answer 31

increase the gap of metals in the EC series

Question 32

What is a Redox eq

Answer 32

When reduction and oxidation occur simultaneously

Question 33

Metal + oxygen

Answer 33

Metal oxide

Question 34

Metal + water

Answer 34

Metal hydroxide + hydrogen

Question 35

Metal + dilute acide

Answer 35

Salt + hydrogen

Question 36

What does a battery release through chemical energy

Answer 36

Electrical energy