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
Lena [83]
3 years ago
5

Given the balanced equation representing a reaction occurring at 101.3 kilopascals and 298 k. 2h2(g) + o2(g) → 2h2o(l) + energy

what is the net amount of energy released when one mole of h2o(l) is produced?
Chemistry
1 answer:
DaniilM [7]3 years ago
8 0
I believe the answer will be 285.8 kJ
The reaction above is for two moles of water; therefore we divide the amount of energy by half. 
The enthalpy of formation of a substance is the energy absorbed or released when one mole of a substance is formed from its constituents elements. For example the enthalpy of formation of water is 285.8 kJ/mol
You might be interested in
Federico has two samples of pure water—sample X and sample Y. Sample X has a volume of 1 L, and sample Y has a volume of 10 L. H
Leto [7]
C is the answer. I just learned this
4 0
3 years ago
Read 2 more answers
In an atom the number of electron is what as the number of protons???​
nydimaria [60]
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.
7 0
2 years ago
What is the energy of a TV wave that NBC broadcasts, if it has a wavelength of 32 meters?
serg [7]

Answer:

Explanation:

E = hc/λ

h = planck's constant = 6.66 x 10 ^ -34

c = speed of light = 2.98 *10^8 m/s

E = (6.66 x 10 ^ -34 )(2.98 *10^8)/32

  = 19.85 * 10 ^-26

   =0.62 x 10^-26

   = 6.2 x 10^-27 J

8 0
3 years ago
N a football game, two players tackle each other so hard that they both fly in opposite directions after they hit each other. �W
evablogger [386]

Answer:

Newton's Third Law

Explanation:

Newton's Third Law stipulates that for every action there is an equal and opposite reaction.

So when the two players are tackling they exert a force on each other.

If player 1 tackles (exerts a force) player 2,  player 2 will exert an equal and opposite reaction on player 1 as stated in Newton's Third Law.

Therefore when they tackle each other so hard they both experience reaction forces so powerful that they fly in opposite directions.

Thus this is an example of the Newton's Third Law.

4 0
3 years ago
PLEASE NEED HELP ASAP
Zigmanuir [339]

I would love to help but I cant see the picture

8 0
3 years ago
Other questions:
  • A sample of a substance has a mass of 4.2 grams and a volume of 6 milliliters. The density of this substance is
    5·2 answers
  • Class 9 <br> Chapter: Structure of the Atom <br> What are the alpha particles compared to?Why?
    11·1 answer
  • What is the limiting reactant when 20g CH4 react with 15g H20?
    11·1 answer
  • Which of the following compounds is the name of a 5 carbon Allene?
    13·1 answer
  • Ethane, C2H6, burns in oxygen. First write a balanced equation for this combustion reaction. What mass of oxygen, in grams, is r
    12·1 answer
  • What is Keq for the reaction 2HCl(9) = H2(g) + Cl2(g)?
    9·1 answer
  • Which of the following statements is true about what happens in all chemical reactions? A. The ways in which atoms are joined to
    6·1 answer
  • Why is foam fight chemical or a physical change
    12·2 answers
  • Select the correct answer.
    5·1 answer
  • Use the Internet to find the SDS for regular bleach (sodium hypochlorite, 4-6%).
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!