Marking Grid

Set 1 / Set 2 / Set 3 / Set 4 / Set 5 / Set 6 / Set 7 / Set 8 / Set 9 / Set 10
1 / C1 / Air
2 / Combustion
3 / Pollution
4 / C2 / Materials
5 / Handling data
6 / Oil and polymers
7 / C3 / Geology and salt
8 / alkalis
9 / chlorine
10 / Chemical equations
Revision Set 1
1 / What % of dry air is nitrogen, N2? / 6 / What raw material are plastics made from?
2 / Coal is mainly which element? / 7 / In what region of the UK are there deposits of salt,limestone and coal
3 / Name the pollutant produced if a fuel contains sulphur / 8 / Give a traditional source of alkali
4 / What word means the opposite of stiff? / 9 / Hydrogen chloride can be converted to chlorine. Is this process oxidation, reduction or neutralisation?
5 / Calculate the mean / 42 45 43 48 47 / 10 / Write a word equation for the (complete) combustion of methane
Revision Set 2
1 / What % of dry air is oxygen, O2? / 6 / Which elements do hydrocarbons contain?
2 / What word is used to describe compounds that contain only hydrogen and carbon? / 7 / What could you say about a rock that contains fragments of shell?
3 / Which two pollutants react with water and oxygen to form acid rain / 8 / Alkali is needed to convert fats and oils into ……………
4 / What word means the opposite of hard? / 9 / What word is used to describe making new chemical using an electric current?
5 / Calculate the mean. Give your answer to 3 significant figures / 78.6 82.4 81.7 78.4 / 10 / Write a word equation for the combustion of petrol
Revision Set 3
1 / Draw a diagram to show how the particles are arranged in a gas / 6 / Give 2 examples of materials made from living organisms
2 / Give an example of a fuel that is a hydrocarbon / 7 / What could you say about a rock that contains rounded grains of sand
3 / Which pollutant makes surface dirty? / 8 / Historically, when alkali was manufactured, 2 polluting gases were made. Name one
4 / What word means the opposite of tough? / 9 / Give a use of chlorine
5 / Which set of data is most reliable? / A 41 42 45 49
B 82 78 78 80
C 2.3 2.4 6.4 2.1 / 10 / Name the salt made when sodium hydroxide reacts with hydrochloric acid
Revision Set 4
1 / Which structures on Earth produced most of its early atmosphere? / 6 / A small % of crude oil is used to make new chemicals. What is the rest used for?
2 / Give the formulae for
  1. carbon monoxide
  2. carbon dioxide
/ 7 / Give 2 uses of salt
3 / Which pollutant is formed by oxidising NO? / 8 / Name this alkali
NaOH(aq)
4 / Give 3 words or terms to describe glass / 9 / Chlorine is made by electrolysis of what?
5 / Highlight the number most likely to be an outlier / A 41 42 45 49
B 82 78 78 80
C 2.3 2.4 6.4 2.1 / 10 / Name the salt made when sodium hydroxide reacts with sulphuric acid
Revision Set 5
1 / What were the 2 main gases in Earth’s early atmosphere? / 6 / Name the small molecules that are joined together to make polymers
2 / Give the formula for
  1. Nitrogen monoxide
  2. Nitrogen dioxide
/ 7 / Give 2 ways of getting underground salt out
3 / Why is carbon monoxide harmful to humans? / 8 / Give the formula for potassium hydroxide
4 / Given a reason why plastic is a better material than metal to make a washing up bowl from / 9 / When chlorine is made by electrolysis, sodium hydroxide is also made. Give a use of sodium hydroxide
5 / Find the best estimate of the true value.
Give your answer to 3 significant figures / 62 63 65 59 / 10 / Name the salt made when calcium hydroxide reacts with hydrochloric acid
Revision Set 6
1 / As earth cooled, what did the water vapour produce? / 6 / As polymer molecules get longer, what happens to the strength of the forces between the molecules?
2 / Using the key, draw a diagram to show a molecule of sulphur dioxide / sulphur atom oxygen atom / 7 / Give a reason why salt is added to food
3 / Explain the difference between primary and secondary pollutants / 8 / Name this alkali
Na2CO3(aq)
4 / Why is aluminium better for making window frames than wood / 9 / Why is chlorine added to drinking water?
5 / Ignoring any outliers there might be, find the mean / 51 58 53 55 51 / 10 / Name the salt made when calcium hydroxide reacts with nitric acid
Revision Set 7
1 / When organisms that photosynthesised evolved on Earth, how did the atmosphere change? / 6 / The longer the polymer molecule, the ______the melting point and the ______the material
2 / Using the key, draw a diagram to show a molecule of water / hydrogen atom oxygen atom / 7 / What is the chemical name for common salt?
3 / Polluting carbon dioxide can be used for photosynthesis. What else can happen to it? / 8 / If an acid is reacted with an alkali what is made?
4 / If a material is an insulator, what 2 things doesn’t it conduct? / 9 / Give a potential disadvantage of adding chlorine to drinking water
5 / Ignoring any outliers there might be, find the mean / 52 39 38 39 38 / 10 / Write a word equation for the reaction between potassium hydroxide and sulphuric acid
Revision Set 8
1 / How was carbon dioxide removed from the early atmosphere? / 6 / Draw a diagram to represent polymer molecules with plasticiser added
2 / What 2 compounds are made when a fuel burns in air? / 7 / Which 2 elements are present in common salt?
3 / How can pollution from a fuel burning car be reduced / 8 / Give the formula of potassium carbonate
4 / Circle the material with the highest melting point? / Water carbon dioxide salt / 9 / What 3 elements are in the polymer PVC?
5 / Give the range / 51 58 53 55 51 / 10 / Write a word equation for the reaction between sodium hydroxide and sulphuric acid
Revision Set 9
1 / Name an important gas that makes up less than 1% of the atmosphere / 6 / Highlight the areas that are crystalline /
2 / Define the term oxidation / 7 / What are the health risks of a high salt diet
3 / In a catalytic convertor what are NO and CO turned into? / 8 / What pH would a solution of sodium hydroxide have?
4 / Give two words/terms to describe the properties of steel / 9 / Give a problem associated with adding plasticiser to PVC
5 / Is there a real difference between these 2 sets of data? Explain / A 32 32 31 34
B 29 31 32 28 / 10 / Write a word equation for the reaction between sodium hydroxide and nitric acid
Revision Set 10
1 / What % of dry air is argon? / What does cross-linking do to the properties of a polymer?
2 / Which two molecules are known as NOx? / Apart from underground, where else can you get salt from?
3 / Give 2 ways of reducing the pollution produced by fossil fuel power stations / Name a chemical that could neutralise hydrochloric acid
4 / Give an example of a material that is flexible and soft / What is the 4th stage in this life cycle assessment? /
  1. making the material from natural raw materials
  2. making the product from the material
  3. using the product

5 / Find the best estimate of the true value / 25 19 25 17 21 24 / Write a word equation for the reaction between calcium carbonate and nitric acid