![subject](/tpl/images/cats/himiya.png)
Chemistry, 21.10.2021 14:00 psychiclion
18 E. Cu2O(s)+O2(g)⟶CuO(s) Express your answer as a chemical equation. Identify all of the phases in your answer.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:30
Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 10:30
Ireally need ! calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. balance this reaction. (s) + (aq) → cacl2(s) + +(aq) a) 1, 2, 1, 2 b) 1, 2, 1, 1 c) 1, 1, 1, 1 d) 2, 1, 2, 1
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
18 E. Cu2O(s)+O2(g)⟶CuO(s)
Express your answer as a chemical equation. Identify all of the phases...
Questions
![question](/tpl/images/cats/en.png)
English, 20.11.2020 06:50
![question](/tpl/images/cats/en.png)
English, 20.11.2020 06:50
![question](/tpl/images/cats/en.png)
English, 20.11.2020 06:50
![question](/tpl/images/cats/en.png)
English, 20.11.2020 06:50
![question](/tpl/images/cats/mkx.png)
Arts, 20.11.2020 06:50
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.11.2020 06:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.11.2020 06:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 20.11.2020 06:50
![question](/tpl/images/cats/en.png)
English, 20.11.2020 06:50
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 06:50
![question](/tpl/images/cats/health.png)
Health, 20.11.2020 06:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 06:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 20.11.2020 06:50
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)