EC label The Reactants And rSam Houston State Uni X+ V www.saplingle ibis/viewph

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EC label The Reactants And rSam Houston State Uni X+ V www.saplingle ibis/viewphp?id-4743050 Imported from Intern TD Auto Finar: e-Ac Center icini Frar în Amerita" Mc TXU MMA wate' DTV Webmail Main SHSU pad hack -sapling Gereral autany Exam Fayment Nelnet Sapling Learning Jump to." Janna Jaynes Sapling Lcarning Sam Houston Statc Unlverslty CEM 1411 Spring18 ROSEActivitics and Dus Dates> HW5a, Encrzy Tenms 3/20/2018 11:00 PM 1.312 O Assignment information ActeiptsSear CakaulatorPernladi: Table Avrailable om: 2018 113 M Due Date: l ate. submissions. Ikwoerd with 50% of the 3/20 2018 11:00 Pr. Sapling Learning paints possihlr dedurted per day untill D322 2018 11:0 PM Which of the follawing statements are true? H for an endothermic reaction is positive Points Possible: for an exothermic reaction is positive When energy is transferred as heat from the system to the surroundings, AH is negative. When energy is transferred as heat from the surroundings to the system, is negative. Grade Category: Default The evaporation of water is an exothermic prooess. Poliries: fal 17 A cambustion reaction is exothermic. Yau cari chherk your arewers You can kecp trying to answer cach question unil you get Itright or glve up. ou can view solutions after due dates for all students in the class have passed You lose S96 or the points evailable to each attempt at that answer For multiple cholce questions, the penalty depends on the nurmber of choices availahle. eTextuouk 3/20/2018

Explanation / Answer

1. An endothermic reaction absorbs heat, so deltaH for it will be positive.so True.

2. False.deltaH is negative for exothermic reaction.

3. True. For exothermic reaction deltaH is negative.

4. False.deltaH will be positive.

5. False. Evaporation of water is an endothermic process as heat is absorbed by water moleculesn in this process.

6. True. Combustion reactions are exothermic as heat is released into the surroundings.

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