Chem Check 5 - WRONG ANSWERS When carbon (C) reacts with...

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WRONG ANSWERS When carbon (C) reacts with oxygen (O 2 ) two substances can form carbon dioxide (CO 2 ) or carbon monoxide (CO). The heat of formation of CO is 110 kJ/mol and the heat of formation of CO 2 , 394 kJ/mol. C (s) + O 2 (g) --> CO (g) delta H f (CO) = 110 kJ/mol C (s) + O 2 (g) --> CO 2 (g) delta H f (CO 2 ) = 394 kJ/mol Which substance, CO or CO 2 , is more likely to form when carbon and oxygen react? Select the response with the best explanation. CO 2 is more likely to form because the bonds are stronger and it is at a lower potential energy than CO. CO is more likely to form, because it is a much more stable compound. CO 2 because it has a smaller heat capacity. CO since delta H is less negative, the reactants of that reaction are less stable than those CO 2 CO 2 , since delta H is more negative, the reactants of that reaction are less stable than those for CO. CO is more likely to form, because it is a much more stable compound. Water (H 2 O) is formed by the reaction of hydrogen (H 2 ) and oxygen (O 2 ) as shown below. 2 H 2 (g) + O 2 (g) --> 2 H 2 O (g) Which of the choices A-D are true? Select the best explanation for your choice from answers E- H. Select two answers: An answer from choices A-D and an explanation from choices E-H.
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Chem Check 5 - WRONG ANSWERS When carbon (C) reacts with...

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