If you said energy was released or absorbed, calculate how much energy is released or absorbed.kJ/molGive your answer in both kJ/mol and MeV. Be sure each of your answer entries has the correct number of significant digits.Note: take particular care to keep enough digits in any intermediate calculation, and use enough digits in any scientific constants you need, since the data with which you are working are very precise.

A chemist measures the energy change ΔH during the following reaction:CH4(g)+2O2(g)→CO2(g)+2H2O(l) =ΔH−882.kJUse the information to answer the following question.Suppose 66.0g of CH4 react.Calculate how much heat will be released or absorbed.kJBe sure your answer has the correct number of significant digits.

Precise measurements give the following masses:nuclide mass11H 1.0078u42He 4.00260uparticle mass10n 1.0086649u0−1e ×5.485810−4u01e ×5.485810−4uNow consider the following nuclear reaction:→+211H  210n  42HeIs energy released or absorbed by this reaction? releasedabsorbedneither releasednor absorbedI need moreinformation to decide.If you said energy was released or absorbed, calculate how much energy is released or absorbed.kJ/molGive your answer in both kJ/mol and MeV. Be sure each of your answer entries has the correct number of significant digits.Note: take particular care to keep enough digits in any intermediate calculation, and use enough digits in any scientific constants you need, since the data with which you are working are very precise. MeV

Complete the following table. Be sure each of your answer entries has the correct number of significant digits.food energy content when eatencal kcal kJa small apple 523.

Consider the following data for lithium:atomic mass 6.941gmolelectronegativity 0.98electron affinity 59.6kJmolionization energy 520.2kJmolheat of fusion 3.0kJmolYou may find additional useful data in the ALEKS Data tab.Does the following reaction absorb or release energy? release→1Lig+Li+ge− absorbCan't be decided with the data given.Is it possible to calculate the amount of energy absorbedor released by reaction (1) using only the data above? yesnoIf you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (1): /kJmolDoes the following reaction absorb or release energy? release→2Li−g+Lige− absorbCan't be decided with the data given.Is it possible to calculate the amount of energy absorbedor released by reaction (2) using only the data above? yesnoIf you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (2): /kJmol

A chemist measures the energy change ΔH during the following reaction:2H2O(l)→2H2(g)+O2(g) =ΔH572.kJUse the information to answer the following questions.This reaction is... endothermic.exothermic.Suppose 56.7g of H2O react.Will any heat be released or absorbed?Yes, absorbed.Yes, released.No.If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. kJBe sure your answer has the correct number of significant digits.