Consider the intermediate chemical reactions.
2 equations. First: upper C a (s) plus upp...
![subject](/tpl/images/cats/himiya.png)
Consider the intermediate chemical reactions.
2 equations. First: upper 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: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 07:30
Label a-f based on the table using c for concentrated and d for dilute
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:30
Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 11:10
Why would a doctor most likely restrict a patient's contact with other people while the patient receives internal radiation
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 16:00
Which question comparing two different metals is best answered through science? a. which metal is easier to use? b. which metal is harder to find? c. which metal is less dense? d. which metal is more valuable?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.11.2020 22:00
![question](/tpl/images/cats/ekonomika.png)
Business, 17.11.2020 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 22:00
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 22:00
![question](/tpl/images/cats/en.png)
English, 17.11.2020 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 22:00
![question](/tpl/images/cats/geografiya.png)
Geography, 17.11.2020 22:00
![question](/tpl/images/cats/ekonomika.png)