![subject](/tpl/images/cats/himiya.png)
What does a negative AHf for a molecule mean?
A. Energy was added when the molecule changed phases.
B. Energy was added when the molecule was formed from its
elements.
C. Energy was released when the molecule was formed from its
elements.
O D. Energy was released when the molecule went through a phase
change.
SUBMIT
![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, 21.06.2019 21:10
Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:00
At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas
Answers: 2
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:30
The solubility of barium nitrate is 9.02 g/100 g h2o at 20°c. a 15.2 g sample of barium nitrate is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? a. unsaturated b. saturated c. supersaturated
Answers: 1
You know the right answer?
What does a negative AHf for a molecule mean?
A. Energy was added when the molecule changed phases...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/en.png)
English, 17.10.2019 21:30
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.10.2019 21:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.10.2019 21:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/geografiya.png)
Geography, 17.10.2019 21:30
![question](/tpl/images/cats/en.png)
English, 17.10.2019 21:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 21:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.10.2019 21:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.10.2019 21:30