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boyakko [2]
3 years ago
14

Can someone help, please...? I really can't understand this...

Chemistry
1 answer:
barxatty [35]3 years ago
5 0
It’s okay to be a little intimidated by this but the answer is a lot more simple than it may look. All you have to do is multiply the standard enthalpies of formation with their stoichiometric coefficient for every chemical and subtract the reactants from the products:

6(-393.5) + 3(-285.8) -1(49) -15(0)
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