Metals

Question 1

What is the word equation for a metal + water?

Answer 1

Metal + water = metal hydroxide + hydrogen

Question 2

What is the word equation for a metal + oxygen?

Answer 2

Metal + oxygen = Metal oxide

Question 3

What metal is a liquid at room temperature?

Answer 3

Mercury

Question 4

why do metals conduct electricity?

Answer 4

The outer electrons are delocalised

Question 5

Name 3 properties of metals

Answer 5

Malleable
Good conductors of electricity
ductile

Question 6

what does the term Malleable Mean?

Answer 6

Can be hammered into shape

Question 7

what does the term Ductile mean?

Answer 7

can be drawn into wire

Question 8

which metals are stored under oil, and why?

Answer 8

The alkali metals are stored under oil to prevent them from reacting with oxygen in the air

Question 9

what is meant by a “reactive metal”?

Answer 9

A metal which will react very easily with other substances

Question 10

what is metal by a “inactive metal”?

Answer 10

A metal that does not readily react with other substances

Question 11

what does fizzing indicate in a reaction?

Answer 11

A chemical reaction is taking place

Question 12

When metals react are solutions acidic, alkaline or neutral?

Answer 12

Alkaline

Question 13

what do all metals above copper react with?

Answer 13

Hydrochloric acid

Question 14

what are batteries and what do they do?

Answer 14

batteries are chemical cells. they convert chemical energy into electrical energy.

Question 15

what is needed to complete the circuit in a lemon battery? Also what is it used for?

Answer 15

The electrolyte,which used to complete the circuit

Question 16

why do lemons conduct electricity?

Answer 16

Lemons contain ions which are free to move.

Question 17

Does a nonreactive and very reactive metal produce and high or low voltage?

Answer 17

The further apart the metals in the electrochmeical series the higher the voltage produced.

Question 18

How can we extract metals from there ores

Answer 18

By using a Blast Furnace

Question 19

what are ores?

Answer 19

Rocks containing metal compounds

Question 20

How can Aluminium be extracted?

Answer 20

Electrolysis

Question 21

Where are metals found?

Answer 21

Metals are found uncombined or combined in the earths crust.

Question 22

What is a oxidation reaction?

Answer 22

Oxidation is when something gains oxygen.

Question 23

What is a displacement reaction

Answer 23

Displacement reactions involve a more reactive element pushing out a less reactive one.

Question 24

What happens when copper is added to a solution of magnesium chloride?

Answer 24

Nothing happen as copper is less reactive than the magnesium.

Question 25

What happens if Zinc is added to a solution of copper sulfate?

Answer 25

The zinc displaces the copper because it is more reactive. The copper sulfate would become less blue

Question 26

What happens when copper is added to a solution of magnesium chloride?

Answer 26

Nothing happens because the copper is less reactive than the magnesium. However the reaction would work the other way round.

Question 27

What are the products when zinc is added to lead nitrate solution?

Answer 27

Zinc nitrate and lead are produced in this reaction. Hydrogen is not produced in this reaction.

Question 28

What are the products when magnesium reacts with sulfuric acid?

Answer 28

Magnesium sulfate and hydrogen are the products.

Question 29

What is a Redox reaction?

Answer 29

Redox reactions are reactions where both oxidation and reduction are taking place.

Question 30

When do a Displacement reactions occur?

Answer 30

Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series