![subject](/tpl/images/cats/himiya.png)
Chemistry, 11.05.2021 15:30 izaiahfieods
7) How much heat is needed to change 28.5g of liquid water to steam? H2O(1) > H2O(g) AH= 44.OKJ * 06.97kJ O 18.0kJ 69.7KJ O -6.97kJ -18.0kJ 0 -69.7kJβ
![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 20:00
When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:30
For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00
The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles
Answers: 1
You know the right answer?
7) How much heat is needed to change 28.5g of liquid water to steam? H2O(1) > H2O(g) AH= 44.OKJ *...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 05.05.2020 10:20
![question](/tpl/images/cats/istoriya.png)
History, 05.05.2020 10:21
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 05.05.2020 10:21
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 10:21
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.05.2020 10:21
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.05.2020 10:21
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 05.05.2020 10:21
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 10:21
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 10:21
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.05.2020 10:21