C1 Revision Quiz A quiz about the important parts of C1. 3.5 / 5 based on 3 ratings ? ChemistryGCSEAll boards Created by: EllieCreated on: 24-05-11 15:45 What is the chemical name of baking powder? Sodium Hydrogencarbonate 1 of 24 What are some examples of carbohydrates? Potatoes and flour 2 of 24 What happens to proteins when they are heated? They denature 3 of 24 What is the equation for baking powder being heated? sodium hydrogencarbonate = sodium carbonate + water + carbon dioxide 4 of 24 How do you test for carbon dioxide? Bubble it through lime water - it should turn milky white 5 of 24 Why do we put additives in food? it enhances flavour and stops food from reacting with oxygen 6 of 24 What is intelligent packaging? it uses sensors to monitor quality of food 7 of 24 What is active packaging? to reduce the need for anti-oxidants by taking in oxygen 8 of 24 What are some examples of emulsions? paints, milk, mayonaise 9 of 24 What is an example of an emulsifier? Egg yolk 10 of 24 How do you make an ester? alcohol + acid = ester + water 11 of 24 Define a solution: a solute + a solvent that will not seperate 12 of 24 Why should cosmetics be tested? So that they don't harm humans 13 of 24 How can we seperate crude oil? A restraining order 14 of 24 What are the problems with oil production? Political and environmental problems 15 of 24 What is cracking? turning large alkane molecules into smaller alkane and alkene molecules 16 of 24 Define polymerisation: process where many monomers react to give a polymer 17 of 24 Define addition polymerisation: reaction of many monomers of the same type that have double bonds to form a polymer with single bonds 18 of 24 What is an unsaturated compound? copntains at least one double bond between carbon atoms 19 of 24 What is a hydrocarbon? a compound of carbon and hydrogen atoms ONLY 20 of 24 What does burning coal produce? Sulfur dioxide 21 of 24 What does sulfur dioxide cause? Acid rain 22 of 24 When burning a fuel, a blue flame would suggest... complete combustion 23 of 24 Define an exothermic reaction.. A reaction that gives out heat to surroundings 24 of 24
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