Which of the following is an endothermic reaction?
a. burning wood
b. an explosio...
![subject](/tpl/images/cats/himiya.png)
Chemistry, 14.01.2020 09:31 morgantisch25
Which of the following is an endothermic reaction?
a. burning wood
b. an explosion
c. burning a match
d. the cooling of an ice pack
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 05:30
What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:20
Why is it that 85.48 rounded to two significant figures is 85 and not 86?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:30
In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)ï‚®sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
English, 10.03.2021 21:00
![question](/tpl/images/cats/istoriya.png)
History, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 10.03.2021 21:00
![question](/tpl/images/cats/istoriya.png)
History, 10.03.2021 21:00
![question](/tpl/images/cats/biologiya.png)
Biology, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.03.2021 21:00
![question](/tpl/images/cats/istoriya.png)