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
Oliga [24]
2 years ago
8

What is the amount of heat required to complete MELT a 200 gram sample of H2O(s)

Chemistry
2 answers:
wolverine [178]2 years ago
8 0

Answer:

66800 J

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 200 g

Heat (Q) required =?

The heat required to melt the 200 g sample of water can be obtained as:

Mass (m) = 200 g

Latent heat of water (L) = 334 J/g

Heat (Q) required =?

Q = mL

Q = 200 × 334

Q = 66800 J

Thus, 66800 J of heat energy is required to melt the sample of water.

alisha [4.7K]2 years ago
7 0

Answer:

66800 J

Explanation:

You might be interested in
If a(n) __________ is applied, the equilibrium shifts to relieve this change in conditions.
elixir [45]

Answer:

the answer is D. stress

If a stress is applied, the equilibrium shifts to relieve this change in conditions.

6 0
2 years ago
Make a prediction about the relative boiling points of the Noble gases
icang [17]

boilng points would boil overAnswer:

Explanation:

6 0
3 years ago
Research shows that the combination of __________ and __________ can reduce the risk of death in a collision by up to 80%
r-ruslan [8.4K]
The combination of seatbelts and airbags can reduce the risk of death in a collision by up to 80%.

The seatbelts help to keep the person in one position and prevent impact with the vehicle as the vehicle comes to a sudden stop. Moreover, the airbag increases the time of collision to reduce the impact experienced by the person. An increased time of collision greatly reduces the damage that is done to the body.
6 0
3 years ago
Which of the following interparticle forces is the weakest
GuDViN [60]

Answer:a

Explanation:sense

6 0
3 years ago
Read 2 more answers
How many electrons are in a neutral atom of sodium
guajiro [1.7K]
<h2>Required Answer :- </h2>

- In the question it is asked how many numbers of protons are present in a sodium atom.

- We know that the atomic number of sodium is 11.

- Sodium atom means it is in its neutral state, the neutral sodium atom has no charge on it.

- We know that the atomic number of an element is always equal to the number of protons for the particular element.

- Therefore the atomic number of sodium is 11 and the number of protons in sodium are 11.

<h3>Additional information :- </h3>

  • If we know the atomic number of an element then only we can find the number of protons, neutrons and electrons present in it. The number of electrons in an element is equal to the atomic number of the respective element

  • The atomic weight of the sodium is 23.

  • The number of neutrons in sodium = Atomic weight of sodium – number of protons in sodium

= 23 – 11 = 12.

  • So, the number of neutrons in sodium is equal to 12.

  • The number of electrons in sodium is equal to the atomic number of sodium. Then the number of electrons in sodium is equal to 11.

  • Therefore the number of protons, neutrons and electrons in sodium are 11, 12 and 11 respectively.

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

5 0
2 years ago
Other questions:
  • How does the size change when an atom forms a cation and when an atom forms an anion?
    14·1 answer
  • Is mass conserved when 50 g of sugar undergoes a physical change?
    7·2 answers
  • A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A
    11·1 answer
  • A pure substance where atoms of two or more elements are chemically bonded to one another
    15·1 answer
  • What is the approximate tilt of the earth?<br> 18°<br> 23°<br> 45°<br> 60°
    5·2 answers
  • How are water and salt regulated at the organ level
    10·2 answers
  • How many total atoms are there in 69.1 g of ammonia (NH3)?​
    9·1 answer
  • What are some compounds that are made from the element copper?
    14·1 answer
  • Matter doesn't have to take up space as long as it has mass.
    11·2 answers
  • Which characteristic of O₂ is correct?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!