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
jarptica [38.1K]
3 years ago
7

Above a pressure of 200 atmospheres and at a temperature of 100 degrees Celsius, water is in gas phase.

Chemistry
2 answers:
ch4aika [34]3 years ago
8 0

<span>The phase of a water at a temperature of 100 degrees Celsius and 200 atmospheres is a liquid. This is confirmed by looking at a phase diagram where it shows the phase of a certain substance at a specific temperature and pressure.</span>

SpyIntel [72]3 years ago
6 0

Answer: The given statement is false.

Explanation:

When water is boiled at a pressure of 1 atm and temperature is 100 degree celsius then both liquid and vapor state of water exists in equilibrium.

But as the temperature reaches at more than 100 degree celsius then liquid state of water changes into vapor state.

But when above pressure of 200 atmospheres and at a temperature of 100 degrees Celsius water is heated then it will exist in liquid phase and not in vapor phase.

Therefore, we can conclude that the statement, above a pressure of 200 atmospheres and at a temperature of 100 degrees Celsius, water is in gas phase, is false.

You might be interested in
What makes it possible to separate substances in a mixture?
Tanzania [10]

Answer:

I think D.

Explanation:

The substances in a mixture are separated by the differences in their physical properties, such as their particle size. The more different the properties are, the easier it is to separate the substances.

8 0
3 years ago
Investigate why some element’s symbols derived from their old names.
Gekata [30.6K]

Answer:

you know just in order to bring that nostalgia into chemists minds

Explanation:

3 0
3 years ago
PLEASE HELP- CHEMISTRY QUIZ
jonny [76]

Answer:

•Li2S is at a low melting point

•NCL3 is a covalent bond

Explanation:

Just some notes to help you:))

Covalent Bonds: A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons

5 0
3 years ago
The smallest particle of a covalently bonded compound is a(n) ________.
vazorg [7]
The smallest particle of a covalently bonded compound is an atom.
8 0
3 years ago
Read 2 more answers
2. The empirical formula of a molecule is CH2O. In an experiment, the molar mass of the molecule was determined to be 360.3 g/mo
Vanyuwa [196]

Answer:

The answer to your question is:

2.- C₁₂ H₂₄ O₁₂

Explanation:

2.-

Data

CH2O

molar mass = 360.3 g/mol

Molar mass of CH2O = 12 + 2 + 16 = 30g

Divide molar mass given by molar mass obtain

                   

                           x = 360.3/30

                          x = 12

Finally

                      C₁₂ H₂₄ O₁₂

Molar mass = (12 x 12) + (24 x 1) + (16 x 12) = 144 + 24 + 192 = 360 g

3.- First we need to write the complete equation of the reaction and balanced it.

Then, we need to convert the mass given to moles of each compound.

After that, we need used rule of three calculate the amount of products based on the moles of reactants given.

Finally, convert the moles to grams.

4.-

a.- It is a relation between the mass of product obtain in an experiment and the mass of a product obtain theoretically times 100.

b.-

35 g of Mg reacted with excess O2

percent yield = 90%

Actual yield = ?

Formula

Percent yield = (actual yield/theoretical yield) x 100

Equation  

                       2Mg  + O2 ⇒ 2MgO

                      48.62 g of Mg ----------------- 80.62 g of MgO

                      35g                  ------------------  x

                     x = 58 g of MgO     (Theoretical yield)

Theoretical yield = 58 g of MgO

Actual yield = percent yield x theoretical yield / 100

                    = 90 x 58 / 100

                   = 52. 23 g

5 0
3 years ago
Other questions:
  • An atom with 5 protons, 6 neutrons, and 5 electrons has an atomic mass of _____ amu. (Enter a whole number.)
    11·2 answers
  • How many molecules of HBr are present in 42.5 grams of HBr
    13·1 answer
  • An empty 3.00 l bottle weighs 1.70 kg. filled with a certain wine, it weighs 4.72 kg. the wine contains 11.5% ethyl alcohol by m
    13·1 answer
  • Which factor is most important to consider when evaluating a journal article about global warming?
    5·2 answers
  • Look around and write down two or three examples of matter and energy that you observe.
    15·1 answer
  • The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abb
    5·1 answer
  • Please help I’m so confused on this it’s stoichiometry
    9·1 answer
  • Calculate the molecular mass of the element
    14·1 answer
  • How do you find the oxidation numbers for H3PO4
    5·1 answer
  • A 684.6 mL sample of carbon dioxide was heated to 387 K. If the volume of the carbon dioxide sample at 387 K is 933.9 mL, what w
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!