C7 quiz C7 3.0 / 5 based on 1 rating ? ChemistryGCSEAll boards Created by: 94Y86Created on: 23-05-12 19:05 what is the general formula for an alkane? CnH(2n+2) 1 of 9 what is the equation of the combustion of ethane with plenty oxygen? ethane+oxygen = carbon dioxide +water 2 of 9 how does the reaction of sodium with ethanol differ from the reaction with water. it reacts vigourously with water but gently with ethanol 3 of 9 what is the functional group of carboxylc acids? COOH 4 of 9 what is an exothermic reaction? an exothermic reaction is a reaction that releases energy usually in the form of heat and it is detected by a rise in temperature 5 of 9 what does the term activation energy define? the minimum amount of energy needed for a reaction to start 6 of 9 in terms of energy how does a catalyst work? the catalyst speeds up the reaction by lowering the activation energy 7 of 9 what is a reversible reaction? a reaction where the products can react to reform the reactants 8 of 9 what is dynamic equillibrium? the overall effect is 0 because the forwards and backwards reactions cancel out each other 9 of 9
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