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
Ivanshal [37]
3 years ago
6

If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem, what would

be the final value for the enthalpy of reaction you use for this intermediate reaction? H2 + 0.5 O2 H2O, H = -286 kJ
Chemistry
2 answers:
Olin [163]3 years ago
4 0
When reversing a given reaction, we simply change the sign of the standard enthalpy change value. Therefore, the reaction will become:
H₂O → H₂ + 0.5O₂, ΔH = 286kJ
This is because if a certain amount of energy is released when a reaction occurs, the same amount of energy must be supplied for the reaction to occur in the reverse direction.
castortr0y [4]3 years ago
3 0

Answer:

<u>286 KJ</u> is the answer

Explanation:

You might be interested in
To help relieve heartburn, a person should take medicine that is
Sav [38]

Prescribed to you by your doctor.

I would use an over the counter antacids for occasional heart burn. If there are symptoms of acid reflux I would suggest a histamine blocker, or H2-Blockers, such as Ranitidine (Zantac) and Famotidine (Pepcid)

3 0
4 years ago
Read 2 more answers
Where does lava in volcanoes come from?
Stella [2.4K]
Magma can push through holes or cracks in the crust of the volcano, causing a volcanic eruption. Which is when magma flows or erupts onto earth's surface, which is what you call lava (whenever it goes onto the earths surface).
4 0
3 years ago
ASAP I AM GIVING BRAINLIEST PLEASEEEEEEEEEEEEEEE HELPPPPPPPPPP
faust18 [17]

Answer:

D) It has a different unit than atomic mass.

4 0
3 years ago
The following diagram represents the potential energy for the reaction:
Sloan [31]
A is the answer I reckon
3 0
3 years ago
Read 2 more answers
What is the difference between positive and negative feedback?
oksano4ka [1.4K]
Negative is bad and positive is good
5 0
3 years ago
Other questions:
  • How to do balance chemical equiations
    13·1 answer
  • Which of the following objects has the greatest kinetic energy?
    6·1 answer
  • If you looked at a glass containing a solution and a glass containing a suspension, how could you tell which glass contained the
    14·1 answer
  • Water contrasts on freezing ?
    12·1 answer
  • Why does water from a flat plate disappears quickly but not from a bucket full of water when both are kept in bright sunshine?
    14·1 answer
  • What information does a balanced equation provide?
    10·2 answers
  • Match the standard reduction potentials for each half reaction and the electric potential for the voltaic cell.
    7·1 answer
  • A beaker with 155 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjug
    6·1 answer
  • Explain, in your own words, what volumic mass is?
    6·1 answer
  • 1. Long strands of DNA that contain lots of genes
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!