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
Lina20 [59]
3 years ago
7

Is the temperature at which a substance melts the same as the temperature changes from a liquid to a solid

Chemistry
1 answer:
sasho [114]3 years ago
8 0

Answer:

No.

Explanation:

If the temperature changes a substance from it's original form, going from solid to liquid, then the temperature required to change it from a liquid to a solid are the opposite. For example, Ice is Water (H2O) in it's solid form. In order to freeze water into ice, the temperature must be very low. In order to melt the ice back into water, the temperature must be higher than the freezing point, but not too high or it will boil, making it a gaseous substance instead.

You might be interested in
What do you understand by Gas oline​
shutvik [7]

Answer:

it is refined petrolium used a sfuel for intetnal combustion engines

Explanation:

in simple words petrol

5 0
3 years ago
Read 2 more answers
Will give brainliest
slamgirl [31]
I will help you with answering this question.
3 0
3 years ago
PLEASE HELP <br> I do not understand
Vikentia [17]

Answer:

Absorbing beta particle because the beta is the numbers and are less and the  big numbers are positive and they are the alpha so when you add beta particle it is called Absorbing so the answer is Absorbing beta particle

4 0
2 years ago
Read 2 more answers
Suppose you have a mixture of copper sulfate (CuSO4) and azulene (C10H8, you may wish to know the structure of azulene). Both co
iVinArrow [24]

Answer:

Aqueous layer (1 M HCI)

Explanation:

First of us I want to remind you of the cliché in chemistry that like dissolves like. In solvent extraction, a mixture is dissolved in a system consisting of two immiscible solvents. One layer is organic while the other layer is aqueous.

Polar substances partition in the aqueous layer while nonpolar substances partition in the organic layer.

Since Copper sulfate is ionic, we will find it in the aqueous layer according to the old chemistry cliche.

3 0
3 years ago
In which of the following compounds does the carbonyl stretch in the IR spectrum occur at the lowest wavenumber?
klio [65]

Answer:

a. Cyclohexanone

Explanation:

The principle of IR technique is based on the <u>vibration of the bonds</u> by using the energy that is in this region of the electromagnetic spectrum. For each bond, there is <em>a specific energy that generates a specific vibration</em>. In this case, you want to study the vibration that is given in the carbonyl group C=O. Which is located around 1700 cm-1.

Now, we must remember that the <u>lower the wavenumber we will have less energy</u>. So, what we should look for in these molecules, is a carbonyl group in which less energy is needed to vibrate since we look for the molecule with a smaller wavenumber.

If we look at the structure of all the molecules we will find that in the last three we have <u>heteroatoms</u> (atoms different to carbon I hydrogen) on the right side of the carbonyl group. These atoms allow the production of <u>resonance structures</u> which makes the molecule more stable. If the molecule is more stable we will need more energy to make it vibrate and therefore greater wavenumbers.

The molecule that fulfills this condition is the <u>cyclohexanone.</u>

See figure 1

I hope it helps!

4 0
3 years ago
Other questions:
  • Gt4rgbrbrtbr\t?<br>frehjkgbrtnvboror
    11·1 answer
  • which of these equations is balanced? A. 2Nac1+H2so4---&gt;Na2so4+2Hc1 B. 2cao+H20--&gt;CaC0h)2 C. H20+co--&gt;h2c03 D. MN+FE--&
    5·1 answer
  • More than 70% of all legislation passed in Washington, DC addresses issues related to science; most of these issues pertain chem
    9·1 answer
  • At higher temperatures,
    14·1 answer
  • What are the mountainous parts of the moon called? Question 3 options: craters terrae maria regolith
    12·2 answers
  • Which one of the following is not a mixture?Air,mercury ,milk,cement​
    5·2 answers
  • Methane is the chief constituent of petroleum fuel <br> A:yes <br> B:no
    10·1 answer
  • What is the difference between energy levels, sub levels, and orbitals?
    5·2 answers
  • A scientist has decided to develop a new cancer treatment. She has observed how patients react to current treatments, how the tr
    15·2 answers
  • How much heat will be produced when 0.58 moles of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!