chirikamo

This page lists questions and answers that were posted by visitors named chirikamo.

Questions

The following questions were asked by visitors named chirikamo.

This question id from IB exam,please help! 1)Which compound has the highest lattice enthalpy? A. CaO B. CaS C. LiF D. LiI Explain the reason ?

Which statements are correct for an endothermic reaction? I. The system absorbs heat. II. The enthalpy change is positive. III. The bond enthalpy total for the reactants is greater than for the products. A. I and II only B. I and III only C. II and III on...

Answers

The following answers were posted by visitors named chirikamo.

Thanks for helping me DrBob222.I am studying IB program and I have many questions and problems I do not understand about chemistry.I will post them later.I hope you can follow and help me.I am so grateful.Thank you so much ^_^

I based on the formular to calculate enthalpy change is equal to the bond enthalpy total for the reactants subtracting from the bond enthalpy for products.Hence,if the reaction is endothermic,then the bond enthalpy total for the reactants is greater than...