Science chemistry unit 1 and 2! 0.0 / 5 ? ScienceChemistryGCSEOCR Created by: BananaBee11Created on: 17-01-16 22:27 an ester that can be made from acids and alcohols but they can evaporate easily and be non toxic? perfume 1 of 26 a non renewable fossil fuel made by dead animal being compressed? crude oil 2 of 26 a large chain of molecules made from monomers polymer 3 of 26 A property of Gore-Tex is that its waterproof and... Breathable 4 of 26 good supply of oxygen in combustion complete 5 of 26 transfers heat out to the surroundings? exothermic reaction 6 of 26 transfers heat in from the surroundings endothermic reaction 7 of 26 the vibration of particles in a heat wave that improves flavour and texture cooking 8 of 26 antioxidants, colours, emulsifiers, flavour enhancers are all additives 9 of 26 the fractions with the lower boiling points exit at the top of the tower fractional distillation 10 of 26 they are alkenes such as ethene and propene, made from hydrocarbons made of hydrogen and carbon only monomer 11 of 26 can be used for plastic bags due to its waterproof and flexible properties poly-ethene 12 of 26 A mixture called a colloid that contains pigment, binding medium and solvent paint 13 of 26 a coloured substance made of rock pigment 14 of 26 glue or oil used in paint binding medium 15 of 26 thins the paint, making it easier to use solvent 16 of 26 a type of paint that evaporates leaving binding medium to form a skin which sticks the pigment to the surface oil 17 of 26 a type of paint that is water based and evaporates to leave the pigment and medium behind emulsion 18 of 26 a paint that changes colour in heat then returns to its original colour when temperature returns thermochromic 19 of 26 a paint that takes light in during the day then lets it out at night phosphorescent 20 of 26 a construction material that is used to make brick clay 21 of 26 a brownish solid that forms when iron is in contact with oxygen and water rust 22 of 26 is a main factor in air but can kill you by itself that lots of people plainly call the air oxygen 23 of 26 a dioxide that comes from fossil fuels and kills plants with acid rain sulphur 24 of 26 it increases the rate of reaction and is unchanged by the reaction catalyst 25 of 26 rate of... reaction 26 of 26
EDEXCEL GCSE 9-1 COMBINED SCIENCE FOUNDATION PAPER 4 CHEMISTRY 2 MARK SCHEME SAMPLE ASSESSMENT MATERIAL 0.0 / 5
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