C1 Topic 2- Acids, Neutalisations And Obtaining Metals

Question 0

Product of Acid+Base

Answer 0

Acid+Base > Sodium+H2O

Question 1

Why is hydrochloride acid produced by the human stomach?

Answer 1

Hydrochloride acid is produced by the human stomach because it helps the digestive system by breaking down protein and it kills bacteria.

Question 2

Product of Acid+Carbonate

Answer 2

Acid+Carbonate > Carbon dioxide+H2O

Question 3

What is electrolysis used for?

Answer 3

Electrolysis is used to make chlorine gas, hydrogen gas and oxygen gas.
chemical decomposition produced by passing an electric current through a liquid or solution containing ions.

the removal of hair roots or small blemishes on the skin by the application of heat using an electric current.

Question 4

Describe the Chlorine Test

Answer 4

Dip a damp piece of litmus paper into a test tube. If it’s chlorine it will bleach the paper white

Question 5

Describe the Hydrogen Test

Answer 5

Squeaky Pop Test

Place a lightened splint into the test tube. If it hydrogen it will make ‘squeaky pop’ sound

Question 6

Name the products of Electrolysis of Dilute Hydrochloric Acid

Answer 6

H2 and Cl2

Hydrogen and Chlorine

Question 7

Product of Electrolysis of Brine (Salt/Sea Water)

Answer 7

Sodium Hydroxide (NaOH)
Hydrogen (H2)
Chlorine (Cl)

Question 8

3 uses of Chlorine

Answer 8

Treats Water Supplies
Bleach Manufacturing
Makes Polymer Poly(chloroethene)

Question 9

What are the products of Water Electrolysis?

Answer 9

Hydrogen Gas (H2)
Oxygen Gas (O2)

Question 10

Oxygen Test

Answer 10

Light a splint, blow it out, put it in the test tube if it delights it oxygen

Question 11

Iron is extracted from its Ore how?

Answer 11

By heating it with carbon (it has a lower reactivity than carbon)

Question 12

Aluminium is extracted by what?

Answer 12

Electrolysis (it has a higher reactivity than carbon)

Question 13

Reactivity Series

Answer 13

Potassium (K)
Sodium (Na)
Calcium (Ca) 
Magnesium (Mg) 
Aluminium (Al)
 Carbon (C)
Zinc (Zn)
Iron (Fe) 
Tin (Sn)
Lead (Pb)

Question 14

Which Metals use Electrolysis to be extracted from their ores?
(Highest to lowest order)

Answer 14

Potassium (K)
Sodium (Na)
Calcium (Cl)
Magnesium (Mg) 
Aluminium (Al)

Question 15

Which metals need to be extracted from their Ores by being heated with Carbon?

Answer 15

Zinc (Zn)
Iron (Fe)
Tin (Sn)
Lead (Pb)

Question 16

Why are some metals extracted via Electrolysis and other through being heated with Carbon?

Answer 16

Electrolysis is used to extract metals with a higher reactivity than carbon.
Heating metals with Carbon is used to extract metals with a lower reactivity than carbon.

Question 17

What are the environmental advantages of recycling metals?

Answer 17

It uses less resources (finite amount of metal, conserves resources)
It uses less energy ( mining, extracting metals, burning fossil fuels=lot)
It uses less money (energy isn’t cheap, saves money)
It makes less waste ( cuts amount going to landfill, space, pollution)