1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
3 years ago
13

4CO2(g) + 2H2O(g) 2C2H2(g) + 5O2(g) Given: 118 kJ 235 kJ 470 kJ 940 kJ 1058 kJ

Chemistry
2 answers:
Artist 52 [7]3 years ago
3 0
<span> You do these problems by finding the heat of formation of each compound, from a table.
Then the heat of reaction is the (sum of the heats of formation of the products) minus (sum of the heats of formation of the reactants).
In your case, the ∆Hrxn = 5∆Hf(O2(g)) + 2∆Hf(C2H2(g)) - 2∆Hf(H2O(g)) - 4∆Hf(CO2(g)).</span>
DanielleElmas [232]3 years ago
3 0

You do these problems by finding the heat of formation of each compound, from a table.

Then the heat of reaction is the (sum of the heats of formation of the products) minus (sum of the heats of formation of the reactants).

In your case, the ∆Hrxn = 5∆Hf(O2(g)) + 2∆Hf(C2H2(g)) - 2∆Hf(H2O(g)) - 4∆Hf(CO2(g)).

You might be interested in
Which of the following would happen if Earth's moon were half the size that it is now? O The oceans' tidal variations would be s
Brilliant_brown [7]

Answer: A. The oceans‘ tidal would be smaller because the moon would exert less gravitational pull on earths oceans.

Explanation:

i got it right :)

3 0
3 years ago
Define the term macromolecule
makkiz [27]

Explanation:

a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.

4 0
3 years ago
If a tube is 2.2 meters in length, how long is the the tube in feet ?​
trapecia [35]

Answer:

7.22 feet long

Explanation:

1 meter = 3.28084 feet

2.2 × 3.28084 = 7.2<u>1</u>785

= 7.22

I hope this is helpful :)

3 0
3 years ago
How is DNA related to chromosomes????????????:/
makvit [3.9K]
They are both made up of the same protein called "histones". 
6 0
3 years ago
Read 2 more answers
calculate the molality of commercial HCl solution which is 12.1Molarity, and has a density of 1.19g/mL, and is 37.2wt.%HCl.
shutvik [7]

Answer:

0.44165 Molal

8 0
4 years ago
Other questions:
  • Naturally occurring zirconium exists are five isotopes. axe with a mass of 89.905 u(51.45%); Zr with a mass of 90.906 u (11.22%)
    5·1 answer
  • Which of the following molecules is nonpolar?<br> O A. CO2<br> O B. NO<br> ос. со<br> O D. SO2
    6·1 answer
  • If the pressure in the room is 759.2 torr and the vapor pressure of water is 23.8 torr, what is the pressure of hydrogen gas in
    10·2 answers
  • A non-magnetized metal object can be magnetized with a stronger magnet. Explain how this happens on the atomic level.
    11·1 answer
  • What does the Periodic Table show?
    6·1 answer
  • Which reaction is single replacement?
    11·2 answers
  • A gas is initially at a pressure of 0.43 atm, and a volume of 11.7 liters. Then the pressure is raised to 3.61 atm and the volum
    12·2 answers
  • What is the nomenclature of wood?
    11·1 answer
  • Balance these equations :
    11·1 answer
  • Could someone plz help me? Giving brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!