Which of these elements is a metal?
A Hafnium (Hf)
B Radon (Rn)
C Silicon (S...
![subject](/tpl/images/cats/himiya.png)
![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 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:00
No copying 15 pts how does a free-body diagram tell you about the net force on an object?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:50
A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 28.06.2019 16:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.06.2019 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 16:30
![question](/tpl/images/cats/en.png)
English, 28.06.2019 16:30
![question](/tpl/images/cats/health.png)
Health, 28.06.2019 16:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 28.06.2019 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 16:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 16:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 16:30
![question](/tpl/images/cats/istoriya.png)
History, 28.06.2019 16:30
![question](/tpl/images/cats/istoriya.png)
History, 28.06.2019 16:30