![Chemistry](/tpl/images/cats/himiya.png)
Chemistry, 29.08.2020 01:01, airiyannag0113
Use Hess's Law to calculate the enthalpy change for the reaction
WO3(s) + 3H2(g) => W(s) + 3H2O(g)
from the following equations:
2W(s) + 3O2(g) => 2WO3(s) DH = -1685.4 kJ
2H2(g) + O2(g) => 2H2O(g) DH = -477.84 kJ
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00, tashaunalewis4786
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 1
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 22:30, teagan56
Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:30, jonquil201
Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal
Answers: 1
Do you know the correct answer?
Use Hess's Law to calculate the enthalpy change for the reaction
WO3(s) + 3H2(g) => W(s) + 3H2O(...
Questions in other subjects:
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 19.09.2021 21:50
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/User.png)
Engineering, 19.09.2021 21:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 19.09.2021 21:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 19.09.2021 21:50
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/geografiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 19.09.2021 21:50
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 19.09.2021 21:50