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In number 4A of the hotdog packet we didn't multiply the enthalpies by a negative when we flipped the reaction, does anyone know why? I thought we were suppose to multiply by a negative when we flipped the reaction because it's now the inverse.
You do flip the enthalpies when the equation is flipped. The final equation should be (2*-345kJ) + (2*21kJ) + (150kJ), where the first equation is multiplied by 2, the second equation is flipped and multiplied by 2, and the final equation is flipped as to give the final reaction 2GingerAle + 5RootBeer -> 2Vodka.
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