![Chemistry](/tpl/images/cats/himiya.png)
1. 2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(g) ∆H = -2599.1 kJ
a) How many moles of O₂ react to produce 4000.0 kJ of energy? (be sure to round to the correct number of sig figs and include units)
b) If 27.0 g of H₂O are produced, how much energy (in kJ) is given off?
2. 2H₂(g) + O₂(g) → 2H₂O(l) ∆H = -571.5 kJ
a) If 1143.0 kJ of energy are given off in the above reaction, how many molecules of H₂ react?
b) How many grams of H₂O are made when 571.5 kJ of energy are released?
Explanations please
Thanks!
![answer](/tpl/images/cats/otvet.png)
Answers: 1
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00, SilverTheAmarok
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: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:30, djdjdjdbdbjx
What is another way to determine mass times acceleration?
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00, carson9373
Wind and moving water provide energy. chemical mechanical thermal none of the above
Answers: 1
Do you know the correct answer?
1. 2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(g) ∆H = -2599.1 kJ
a) How many moles of O₂ react to produce 4...
Questions in other subjects:
![Konu](/tpl/images/cats/geografiya.png)
Geography, 06.10.2019 10:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/fizika.png)
Physics, 06.10.2019 10:30
![Konu](/tpl/images/cats/istoriya.png)
History, 06.10.2019 10:30
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 06.10.2019 10:30
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 06.10.2019 10:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 06.10.2019 10:30