![subject](/tpl/images/cats/himiya.png)
Chemistry, 31.07.2019 09:00 jerseygirl3467
***50 points*** which of the following combinations will result in a reaction that is only spontaneous at low temperatures? a) positive enthalpy change and positive entropy change b) positive enthalpy change and negative entropy change c) negative enthalpy change and positive entropy change d) negative enthalpy change and negative entropy change i think it's c, or maybe d, !
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:00
Why are the trends and exceptions to the trends in ionization energy observed?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:00
Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:30
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:20
Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
Answers: 3
You know the right answer?
***50 points*** which of the following combinations will result in a reaction that is only spontaneo...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 16.09.2019 18:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.09.2019 18:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.09.2019 18:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.09.2019 18:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
History, 16.09.2019 18:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.09.2019 18:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 16.09.2019 18:00
![question](/tpl/images/cats/mat.png)