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lyudmila [28]
3 years ago
15

What is the relationship between the classification of a reaction as endothermic or exothermic and the enthalpy of the reaction?

Chemistry
1 answer:
Aleks04 [339]3 years ago
3 0
If Enthalpy is positive, the reaction is endothermic.
If Enthalpy is negative, the reaction is exothermic.
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Answer:

You answer is correct

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The last element of each period are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo).

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Therefore, the last element of each period always have the properties of a noble gas.

4 0
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Chemical would be the correct answer
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