![subject](/tpl/images/cats/himiya.png)
Consider the intermediate chemical reactions. 2 equations. First: C a (s) plus upper C upper O subscript 2 (g) plus one half upper O subscript 2 (g) right arrow upper C a upper C upper O subscript 3 (s). Delta H 1 equals negative 812.8 kilojoules. Second: 2 upper C a (s) plus upper O subscript 2 (g) right arrow 2 upper C a upper O (s). Delta H 2 equals negative 1, 269 kilojoules. The final overall chemical equation is Upper Ca upper O (s) plus upper C upper O subscript 2 (g) right arrow upper C a upper C upper O subscript 3 (s).. When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation is halved and has its sign changed. Is halved. Has its sign changed. Is unchanged.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 15:30
Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 01:30
(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Consider the intermediate chemical reactions. 2 equations. First: C a (s) plus upper C upper O subsc...
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.01.2020 19:12
![question](/tpl/images/cats/istoriya.png)
History, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 19:12
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 19:12
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.01.2020 19:12
![question](/tpl/images/cats/es.png)
Spanish, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 19:12
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 19:12