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
mylen [45]
3 years ago
8

Select the correct answer.

Chemistry
1 answer:
Svetradugi [14.3K]3 years ago
4 0

Answer:

the answer is A

Explanation:

According to the law of conservation of energy or the first law thermodynamics energy neither be created nor destroyed, energy is transferred from one form to another form.

You might be interested in
Which of the following will form a solution? (Select all that apply.)
SSSSS [86.1K]

Answer:

sand and water

Explanation:

when u mix these both it will become like a paste

4 0
2 years ago
In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0
sp2606 [1]

Answer:

The value of K_p for this reaction at 1200 K is 4.066.

Explanation:

Partial pressure of water vapor at equilibrium = p^o_{H_2O}=15.0 Torr

Partial pressure of hydrogen gas at equilibrium = p^o_{H_2}=?

Total pressure of the system at equilibrium P = 36.3 Torr

Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:

P=p^o_{H_2O}+p^o_{H_2}

p^o_{H_2}=P-p^o_{H_2O}=36.3 Torr- 15.0 Torr = 21.3 Torr

3 Fe(s) 4 H_2O(g)\rightleftharpoons Fe_3O_4(s) 4 H_2(g)

The expression of K_p is given by:

K_p=\frac{(p^o_{H_2})^4}{(p^o_{H_2O})^4}

K_p=\frac{(21.3 Torr)^4}{(15.0 Torr)^4}=4.066

The value of K_p for this reaction at 1200 K is 4.066.

6 0
3 years ago
Is it possible to make CD without plastic? why or why not?
Kisachek [45]
I think it is not possible to make cd without plastic . because except plastic no other material is so durable for making cd.
5 0
2 years ago
Read 2 more answers
What is the name of the aluminum ion? Al–1 Al+2 Al–3 Al+3
Sidana [21]

Most transition metal form more than one cation but aluminum forms the Al3+ cation only.

5 0
3 years ago
Read 2 more answers
How can we remove the hardness of water by boiling?​
pantera1 [17]

Heat makes it softer

5 0
3 years ago
Other questions:
  • Identify the product of radioactive decay and classify the given nuclear reactions accordingly.
    6·2 answers
  • 0.5 gm of mixture of NH4Cl and NaCl was boiled with 25 ml of 0.95 N NaOH in a vessel till all the ammonia is expelled.The residu
    10·1 answer
  • Is it is a broken window a physical change or chemical change?
    8·1 answer
  • Explain why are metals good conductors and why covalent bonds are not
    8·1 answer
  • Given the information that nitrogen atoms are larger than hydrogen atoms,which of the models best represent ammonia?(NH3)
    10·1 answer
  • ASAP!!!! ILL GIVE BRAINIEST
    14·2 answers
  • What is the IUPAC name for the following compound?
    5·1 answer
  • 11. Which do you think is more important in forming personality---environment or heredity? Explain your answer.​
    15·1 answer
  • If I have 6 moles of a gas at a pressure of 10.6 atm and a volume of 48 liters, what is the temperature of this gas?
    9·1 answer
  • Bill bye states that “ as more and more species disappear, it is harder and harder to keep the ecosystem in balance because we d
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!