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
lora16 [44]
3 years ago
14

If the ΔH for

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer:

ΔH2=772 kJ

Explanation:

Hello,

In this case, since the change in a reaction's enthalpy is given by the subtraction between the product's enthalpies and the reactant's enthalpies, we notice that the second reaction is the same initial reaction but arranged on the contrary way. In means that if the original reaction has:

ΔH1=−772 kJ

It means that the reaction:

2NaCl → 2Na + Cl2

Has an enthalpy of reaction of:

ΔH2=-(−772 kJ)

ΔH2=772 kJ

As the reactants and products were all inverted, so the enthalpy change has the same number but different sign.

Best regards.

You might be interested in
What is the function
Verizon [17]

Answer:

c. carry materials to all parts of the body

Explanation:

The lungs and tissues receive oxygen and nourishment via blood.

8 0
2 years ago
A scientist is researching the solar system. How can the scientist best add to existing empirical evidence about the solar syste
Bogdan [553]

Answer:

The correct option is;

c. The scientist can make and record observations

Explanation:

Empirical evidence are evidences obtained by direct observation, sensual perception or direct measurement. It is the processed and useful data gathered and stored in a material form or documented to provide record of the measurement.

With the aid of empirical evidence, it is possible for researchers to find answers to question regarding topics that can vastly impact every day life.

With empirical evidence, it is possible to determine the effects of treatment in a study such as the invention of working car safety devices such as seat belts and airbags.

7 0
3 years ago
Which of the following is NOT true?
ivanzaharov [21]
B, hope this helps :)
4 0
2 years ago
Read 2 more answers
What is not a phase of matter
sertanlavr [38]

C. Condensing.

Why: Because, Condensing means  to make something denser or more concentrated.

Hope this helps! ;)

6 0
2 years ago
Read 2 more answers
The chemical properties of an atom are related to the number of its what
RideAnS [48]
The properties of the electrons of an atom are determined in large part by the number of protons presented in the nucleus of the atom
7 0
3 years ago
Read 2 more answers
Other questions:
  • What volume will 50.2 grams of co2 (g) occupy at stp?
    8·1 answer
  • What allows a mixture to be separated by distillation
    7·2 answers
  • Someone PLEASE help me I don’t remember this.
    13·1 answer
  • TEST Ch 10 Moles- Part B Math
    9·1 answer
  • What is the molarity of an HCl solution if 43.6 mL of a 0.125 M NaOH solution are needed to titrate a 25.0 mL sample of the acid
    7·1 answer
  • Which is the best interpretation of the two flat portions of the graph
    6·2 answers
  • The lower the pressure, the lower a liquid’s boiling point is. Water actually boils much faster at the top of a mountain where a
    8·1 answer
  • Besides their shape, how does a 2p orbital differ from a 3d orbital? chegg.
    11·1 answer
  • Find the volume of the rock in the images by the amount of water that it displaces
    15·1 answer
  • In a terrarium, the pincushion moss, the echeveria, and the moon cactus make up which of the following? Select all that apply. A
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!