The total bonding energy for the products of a reaction is 1230 kJ/mol and the bonding energy of the reactants is 565 kJ/mol. Calculate the change in enthalpy, and classify the reaction as endothermig or exothermic.

-665 kJ/mol, endothermic
665 kJ/mol, exothermic
-665 kJ/mol, exothermic
665 kJ/mol, endothermic

Question

The total bonding energy for the products of a reaction is 1230 kJ/mol and the bonding energy of the reactants is 565 kJ/mol. Calculate the change in enthalpy, and classify the reaction as endothermig or exothermic.

-665 kJ/mol, endothermic
665 kJ/mol, exothermic
-665 kJ/mol, exothermic
665 kJ/mol, endothermic

Katrin369 · Answer

I'm  not sure, ask @Hoodmemes when he is online

Katrin369 · Answer

shes online

prettydevil45 · Answer

@Hoodmemes can u help me please

Hoodmemes · Answer

Simple way to solve this $$565 kJ/mol- 1230 kJ/mol=-665 kJ/mol$$ (If the enthalpy change listed for a reaction is negative, then that reaction releases heat as it proceeds — the reaction is exothermic)- So this reaction is (Exothermic) Source Used: https://www.dummies.com/education/science/chemistry/how-to-calculate-endothermic-and-exothermic-reactions/

prettydevil45 · Answer

what do u mean

lizzie777 · Answer

@darkknight can help he is really good in math

itsme · Answer

its not math thou