bond energies and hydrogen 0.0 / 5 ? ChemistryEnargy and chemical testsGCSEAQA Created by: blloob1Created on: 07-05-14 20:15 what is an exothermic reaction a reaction that gives out heat 1 of 21 what is activation enargy enargy needed to break the origanal bonds 2 of 21 what is an endothermic reaction a reaction that takes in enargy 3 of 21 what is lowered by a catalyst activation energy 4 of 21 what isnt effected by the reactionwhen a catalyst is used the catalyst 5 of 21 what enargy does every chemical bond have bond energy 6 of 21 this bond enerhy varies slightly depending on what the compound 7 of 21 you can use known bond enargys to calculate what overall energy change 8 of 21 what is the reaction between hydrogen and oxygen exothermic 9 of 21 you get enargy from recycling hydrogen in a combustion engine and what fuel cell 10 of 21 hydrogen can burnt in what as fuel for a combustoin engine oxygen 11 of 21 hydrogen combines with oxygen to form what very clean water 12 of 21 what propoty prevents hydrogen from being stored easily explosive 13 of 21 a fuel cell is an ellectrical cell thats supplied with fuel and oxygen and uses energy from the reaction between them to generate what electricity 14 of 21 hydrogen can be used in a hydro what fuel cell hydrogen-oxygen fuel cell 15 of 21 name one of the by products produced by fuel cells water 16 of 21 name one of the by products produced by fuel cells heat 17 of 21 were would this be a major advantege in citys 18 of 21 hydrogen is a gass so is more difficult to store than what liquid 19 of 21 one way of making hydrogen fuel hydrocarbons from fossil fuels 20 of 21 one way of making hydrogen fuel electrolysis of water 21 of 21
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