Metals

Question 1

Name 4 properties of metals

Answer 1

• shiny (lustrous)
• conductor of electricity
• conductor of heat
• sonorous (brings in sound)

Question 2

What 2 things do electrons do in metallic bonding?

Answer 2

1. Attract positive ions

2. Stop positive ions from repelling each other

Question 3

Name the 3 reactions metals can take place in

Answer 3

1. Metal + oxygen
2. Alkali metal + water
3. Metal + acid

Question 4

What is the general word equation for metal + oxygen

Answer 4

Metal + oxygen -> metal oxide

Question 5

What is the general word equation for metal + water

Answer 5

Metal + water -> metal hydroxide + hydrogen

Question 6

What is the general word equation for metal + acid

Answer 6

Metal + acid -> salt + hydrogen

Question 7

What metal is unreactive and is at the bottom of the reactivity series

Answer 7

Gold

Question 8

Write out the whole reactivity series

Answer 8

Potassium
Sodium
Lithium
Calcium

Magnesium 
Aluminium 
Zinc
Iron
Tin
Lead

Copper
Mercury
Silver

Gold

Question 9

How do you extract metals below copper in the reactivity series

Answer 9

Heat them up

E.g. metal oxide -> metal + oxygen

Question 10

How do you extract metals below aluminium but including copper

Answer 10

• they dont decompose when heated
• you must mix the oxide with carbon and then heat.
• the carbon and oxygen with combine to make carbon dioxide and the metal will be left over

E.g. metal oxide + carbon -> carbon dioxide + metal

Question 11

How do you extract metals above zinc (including aluminium)

Answer 11

We use electrolysis of the molten compound

Question 12

What is an electrolyte

Answer 12

It is a compound, when dissolved it will conduct. All batteries contain them and they allow ions to move.

Question 13

Ions flow through ______ and electricity flows through ______

Answer 13

Solutions, wires

Question 14

What does OILRIG stand for

Answer 14

Oxidation is loss, Reduction is gain

Question 15

Write the oxidation equation for zinc

Answer 15

Zn (s) -> Zn 2+ (aq) + 2e-

Question 16

Learn how to draw a electrochemical cell diagram

Answer 16

In jotter

Question 17

Answer this redox equation

Magnesium and iron

Answer 17

Step 1: magnesium loses (oxidation) - higher in the reactivity series
And iron gains (reduction) - lower

Step 2: write oxidation and reduction equations
Mg(s) -> Mg2+ (aq) + 2e-
Fe 2+ (Aq) + 2e- -> Fe (s)

Step 3: cancel out electrons and combine equations
Fe 2+ (aq) + Mg (s) -> Mg 2+ (aq) + Fe (s)

Question 18

How can a cell be made

Answer 18

For any chemical reaction which involves oxidation and reduction

Question 19

Draw a diagram for redox involving non-metals

Answer 19

In jotter

Question 20

What rod do we use when we have a non-metal solution

And what is the electrode made of

Answer 20

Carbon

Graphite

Question 21

What happens when we connect 2 different metals

Answer 21

We can produce a voltage

Question 22

We soke our ion bridge in ____ to help the ions move

Answer 22

Electrolyte