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10 cards from this deck
Substance that can release stored energy relatively easily
Reaction with oxygen gas, releasing energy
HHH
ΔH=Hp−Hr\Delta H = H_p - H_rΔH=Hp−Hr
Negative
Positive
Energy required to break bonds so reaction can proceed
Requires energy input
Releases energy
Joule (symbol J\text{J}J)
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