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
sukhopar [10]
3 years ago
10

Explain how mixture melting points can be helpful in distinguishing between two compounds that have essentially the same melting

point.
Chemistry
1 answer:
grandymaker [24]3 years ago
4 0
Ice and Vaseline. Those are two melting compounds. When melting ice it turns into water and when melting Vaseline it melts into a oily liquid form. You can also freeze both of them and you can melt them again.
You might be interested in
What is a time machine? who discovered the time machine​
o-na [289]

<em>A</em><em> </em><em>time</em><em> </em><em>machine</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>device</em><em> </em><em>which </em><em>can</em><em> </em><em>transport </em><em>an</em><em> </em><em>object</em><em> </em><em>or</em><em> </em><em>person</em><em> </em><em>back</em><em> </em><em>in</em><em> </em><em>time</em><em> </em><em>or</em><em> </em><em>in</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>future</em><em>.</em><em> </em>

<em>Ali</em><em> </em><em>Razeghi</em><em> </em><em>is </em><em>the </em><em>person </em><em>who </em><em>invented</em><em> </em><em>the</em><em> </em><em>time</em><em> </em><em>machine</em><em>.</em>

6 0
3 years ago
Consider two bulbs seperated by a valce. Both bulbs are amintained at the same temperature. Assume that when the valve between t
Juliette [100K]

Answer:

The  pressure is P_f  =  0.93 \  atm

Explanation:

From the question we are told that

   The  volume of  Ne  is  V_N  = 2.50 \ L

    The volume  of  CO is  V_C =  2.00 \  L

    The  pressure of  Ne is  P_N  =  1.09 \ atm

      The  pressure of  CO is P_C =  0.773 \  atm

The  number of  moles of  Ne present is evaluated using the ideal gas equation as

      n_N  =  \frac{P_N  *  V_N}{R T}

=>   n_N  =  \frac{1.09  *  2.50 }{R T} =  \frac{2.725}{RT}

The  number of  moles of  CO present is evaluated using the ideal gas equation as

      n_N  =  \frac{P_C  *  V_C}{R T}

=>   n_N  =  \frac{0.73  *  2.00 }{R T} =  \frac{1.46}{RT}

The  total number of moles of gas present is evaluated as

        n_T  =  n_N  +  n_C

        n_T  =  \frac{2.725}{RT}  +   \frac{1.46}{RT}

      n_T  =  \frac{4.185}{RT}

The  total volume of gas present when valve is opened is  mathematically represented as

                V_T  =  V_N  + V_C

    =>        V_T  =  2.50 + 2.00 =  4.50 \  L

So

  From the ideal gas equation the final pressure inside the system  is mathematically represented as

         P_f  =  \frac{n_T  *  RT }{ V_T}

=>      P_f  =  \frac{[\frac{4.185}{RT} ]  *  RT }{ 4.50}

=>       P_f  =  0.93 \  atm

     

3 0
3 years ago
Mass is measured using _____.
Ierofanga [76]

Answer:

All of the above

3 0
3 years ago
Read 2 more answers
On the calendar, the full moon is shown happening on the eleventh of the month. What moon would you see around the date shown wi
Elan Coil [88]

Answer: waning gibbous

Explanation:

Your welcome

7 0
3 years ago
Which reagent is the limiting reactant when 0.400 mol Al(OH)3 and 0.400 mol H2SO4 are allowed to react
jeka94

Answer:

H₂SO₄  will be the limiting reagent.

Explanation:

The balanced reaction is:

2 Al(OH)₃ + 3 H₂SO₄ → Al₂(SO₄)₃ + 6 H₂O

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, it is possible to use the reaction stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction).

You can use a simple rule of three as follows: if by stoichiometry 2 moles of Al(OH)₃ reacts with 3 moles of H₂SO₄, how much moles of H₂SO₄ will be needed if 0.4 moles of Al(OH)₃ react?

moles of H_{2} SO_{4} =\frac{0.4 moles of Al(OH)_{3}*3 moles of H_{2} SO_{4} }{2 moles of Al(OH)_{3}}

moles of H₂SO₄= 0.6 moles

But 0.6 moles of H₂SO₄ are not available, 0.40 moles are available. Since you have less moles than you need to react with 0.4 moles of Al(OH)₃, H₂SO₄  will be the limiting reagent.

7 0
2 years ago
Other questions:
  • Select the correct answer.
    11·1 answer
  • The gas in the piston is being heated, and the piston has moved upward. The observation will be summarized in a row of the incom
    7·2 answers
  • In an undisturbed stack of rock layers, each containing fossils of once-living organisms, where would some evidence of the most
    5·2 answers
  • The equilibrium constant for the reaction
    7·2 answers
  • What is the activity of a 54.7 μCi sample of carbon-14 in becquerels?
    13·1 answer
  • 3) In which system do molecule-ion attractions
    11·1 answer
  • A substance which is made up of the same kind<br> of atom is known as?
    10·1 answer
  • A gas has a volume of 72.1 liters at 58.3 atm. The final volume is 101.0L, what is the new pressure?
    10·1 answer
  • In order to comply with the requirement that energy be conserved, Einstein showed in the photoelectric effect that the energy of
    9·1 answer
  • Identify indicators of a chemical reaction. check all of the boxes that apply. a black powder is added to a clear liquid. fizzin
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!