Paper 2 ewwwwwwwwww

Question 1

How is a polymer made

Answer 1

A polymer is made by joining together thousands of small, identical molecules (monomers)

Question 2

Give two key points about condensation polymers

Answer 2

with is condensation polymers we start with two different monomers
each monomer has two of the same functional groups

Question 3

How do we test for hydrogen

Answer 3

Insert a burning splint into a test tube that contains the gas and if it creates a pop sound then hydrogen is present

Question 4

How do we test for oxygen

Answer 4

Place a glowing splint into a test tube and if the splint relights oxygen is present

Question 5

How do we test for carbon dioxide

Answer 5

Place a solution of lime water in a tube and bubbles the gas throw pipette into this solution if we repeat this several times the cloud water turns cloudy if it does time cloudy calm dioxide is present

Question 6

How do you test for chlorine

Answer 6

Just for chlorine instead of damp litmus paper into the mouth and test tube containing the gas if the litmus paper turns white then chlorine is present

Question 7

How to carry out all flame tests- the setup

Answer 7

First replace a small amount of mechanical onto wire mounted in a handle, we then place the end of this into a blue Bunsen burner flame and the colour of the flame can be used to work out the metal ion present

Question 8

What colour flame does lithium produce

Answer 8

A crimson flame

Question 9

What colour flame do you get for sodium

Answer 9

A yellow flame

Question 10

What colour flame does copper ions produce

Answer 10

A green flame

Question 10

What colour flame does a potassium ion produce

Answer 10

A lilac flame

Question 11

What colour flame does calcium produce

Answer 11

And orange red flame