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
Naya [18.7K]
2 years ago
7

Determine the energy change in the following reaction. This reaction is considered ...

Chemistry
2 answers:
Juliette [100K]2 years ago
8 0

Answer:isothermic

Explanation:

telo118 [61]2 years ago
7 0

Answer:

Energy abosorbed = Energy released.

Thus ISOTHERMIC

You might be interested in
Help please!! I'll name you brainliest!!
Inessa05 [86]

the answers is cacih2

wjdgagqjdhdgahahdhvddvvsvshsd

7 0
3 years ago
At what the pressure, in atmospheres, that O2, gas at 75°C has a density of 2.00 g/L​
kari74 [83]
Pink and fluffy and squishy mangos
8 0
3 years ago
Please help me complete the following word equations:) also write the balanced equation, full ionic equation, and net ionic equa
AVprozaik [17]

Explanation:

The states may differ depending on the reactions

6 0
3 years ago
Taking advantage of their large differences in pKa values, describe how a mixture of phenol and benzoic acid in diethyl ether so
Marat540 [252]

Answer:

By adding bicarbonate.

Explanation:

The pka of the phenol (C₆H₅OH) is 10 and the pka of the benzoic acid (C₆H₅COOH) is 4, which means that the benzoic acid is a stronger acid than phenol, so if we want to separate phenol from benzoic acid in diethyl ether we need to first use a weak base that will react with benzoic acid and not with the phenol:  

C₆H₅-COOH + HCO₃⁻  ⇄  C₆H₅-COO⁻  +  H₂CO₃

C₆H₅-OH + HCO₃⁻  ⇄  no reaction

The reaction of the benzoic acid with bicarbonate will produce the benzoate ion that will be soluble in the aqueous layer, while the phenol will remain dissolved in the organic layer, so we can separate the two of them by the separation of the two immiscible layers.      

Having the two layers separated, the benzoic acid can be recovered from the aqueous layer by adding HCl:

C₆H₅-COO⁻ + HCl  ⇄  C₆H₅-COOH + Cl⁻

<u>This acid will precipitate from the aqueous solution, and the solid can be isolated by filtration</u>.  

The phenol in the organic layer can be dissolved into an aqueous layer by the adding of a strong base like NaOH:

C₆H₅-OH + OH⁻  ⇄  C₆H₅-O⁻ + H₂O

The phenoxide ion soluble in the aqueous layer can be recovered later by the adding of HCl, which will form the original phenol:

C₆H₅-O⁻ + HCl  ⇄  C₆H₅-OH + Cl⁻  

<u>The precipitated phenol can be isolated by filtration. </u>

This way we can separate a mixture of phenol and benzoic acid in diethyl ether solution.  

I hope it helps you!

6 0
3 years ago
Which of the following locations would experience the highest rate of sublimation?
g100num [7]
I think its the arctic ice caps
6 0
3 years ago
Read 2 more answers
Other questions:
  • Certain atoms emit photons of light with an energy of 3.820 ✕ 10−19 J. Calculate the frequency (in Hz) and wavelength (in nm) of
    15·1 answer
  • Given two temperatures, 36 °F and 72 °F, which of the following correctly compares the number of opportunities for particles to
    9·1 answer
  • At STP, what physical property of aluminum always remains the same from sample to sample?
    6·1 answer
  • Chlorine forms a number of oxides with the following oxidation numbers: 1, 3, 4, 6, and 7. These compounds are stable and neutra
    12·1 answer
  • The balanced chemical equation for the reaction between PCl5 and water is given below. If 3.45 moles of HCl are produced, how ma
    8·1 answer
  • Which of the following molecules contains polar covalent bonds?
    15·1 answer
  • Como se calcula la relación volumen-volumen?
    15·1 answer
  • Which atorn was used to determine the amount of particles in a mole?
    7·1 answer
  • Which of the following best describes the kinetic theory?
    12·2 answers
  • An ion of calcium has a charge of 2+. The ion contains 18 electrons. How many protons does a neutral atom of calcium possess?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!