Liam investigates the energy released when ammonium nitrate is dissolved in water.His method is as follows:Liam’s results were:Initial temperature = 20 ºCFinal temperature = 14 ºCHow can you tell from the student’s results that the reaction is endothermic?There is a rise in temperature.Effervescence (fizzing) occurs due to the production of a gas.There is a fall in temperature.The ammonium nitrate crystals disappear and dissolve into the solution.I DON'T KNOWSUBMIT ANSWER

When ammonium nitrate is added to water, an endothermic reaction occurs and ________________________.Question 8AnswerA.nothing changes.B.the temperature rises.C.heat is given out.D.the temperature of the reaction mixture falls.

When ammonium nitrate, NH4NO3(s) is added to water at 25 °C, it dissolves spontaneously and the temperature of the solution decreases. This indicates that the factor causing the substance to dissolve is a change in ________.Group of answer choicestemperatureenergyenthalpyentropy

A student dissolves 14.5 g of ammonium nitrate NH4NO3 in 250. g of water in a well-insulated open cup. She then observes the temperature of the water fall from 20.0 °C to 16.5 °C over the course of 8.1 minutes.Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction:→NH4NO3s + NH+4aq  NO−3aqYou can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits.Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction.Is this reaction exothermic, endothermic, or neither? exothermicendothermicneitherIf you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. kJCalculate the reaction enthalpy ΔHrxn per mole of NH4NO3. kJmol

This reaction is... endothermic.exothermic.Suppose 96.4g of NH3 react.Will any heat be released or absorbed?Yes, absorbed.Yes, released.No.

A student adds a small amount of ammonium chloride to a beaker of water. The temperature of water decreased from 21oC to 17oC. Which type of reaction has occurred and why? Question 3AnswerA.Endothermic reaction because heat is absorbed. B.Exothermic reaction because heat is released.C.Exothermic reaction because heat is absorbed.D.Endothermic reaction because heat is released.