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
abruzzese [7]
4 years ago
10

Most substances become less dense as the temperature increases. Which substance is an exception to this rule

Chemistry
2 answers:
stealth61 [152]4 years ago
6 0
The substance is water
oee [108]4 years ago
4 0

Answer : Ice at 0° C.

Explanation : The statement that most of the substances becomes less dense as the temperature increases is not true for ice.

As when the temperature increases the ice melts into liquid which is found to be more denser than ice. The mass is observed to be the same, but the volume decreases as the melting process occurs.

You might be interested in
Why is gold foil used on sculptures
Aleonysh [2.5K]

The gold leaf (not foil) is to give a sculpture or a painting appeal. Without it, it would discolour quicker.The gold leaf can be easily removed if needed to be.

5 0
3 years ago
Read 2 more answers
If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol
igomit [66]

Answer:

\Delta _RH=4x10^{-3}\frac{kJ}{mol}

Explanation:

Hello,

In this case, the molar enthalpy of reaction is obtained by dividing the involved energy by the reacting moles:

\Delta _RH=\frac{12J}{3mol} =4\frac{J}{mol}

Thus, it is important to notice that the compound "uses" the energy, it means that it absorbs the energy, for that reason the sign is positive. Moreover, computing the result in kJ/mol we finally obtain:

\Delta _RH=4\frac{J}{mol}*\frac{1kJ}{1000J} =4x10^{-3}\frac{kJ}{mol}

Best regards.

5 0
3 years ago
Which electron configuration represents a Scandium atom?
VARVARA [1.3K]
Sc (neutral) [Ar] 3d1 4s2
Sc+ [Ar] 3d1 4s1
Sc2+ [Ar] 3d1
hope this helped!
4 0
3 years ago
Which of these statements best answers the question: What is art?
Anna11 [10]

Answer:

You didn't provide any statements. If it is an option, art is a form of expression. Something created from imagination that expresses the thoughts and emotions of the artist.

8 0
3 years ago
Answer in detail?? What precautions would you take to protect yourself from an earthquake, when you are at home and when you are
Dmitry [639]

Answer:

If you're indoors, stay inside. If you're outside, stay outside. If you're indoors, stand against a wall near the center of the building, stand in a doorway, or crawl under heavy furniture (a desk or table). Stay away from windows and outside doors.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A solution is prepared by dissolving 10.0 g of NaBr and 10.0 g of Na2SO4 in water to make a 100.0 mL solution. This solution is
    6·1 answer
  • The compound methyl butanoate smells like apples. Its percent composition is 58.8% C, 9.8% H, and 31.4% O, and its molar mass is
    12·2 answers
  • A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.145 g of this subunit w
    8·1 answer
  • Can u see water vapour by a microscope?
    6·2 answers
  • how many moles of water H2O contain 2.0 x 10^22 molecules of water? express the quantity in moles to two significant figures
    7·1 answer
  • 1. Why is severe weather associated with low pressure systems?
    15·2 answers
  • The Faruq family uses 548 liters of water per day.
    7·1 answer
  • If a steel container holds 3.50 moles of hydrogen gas and 3.50 moles of helium gas, and the total pressure is 4.00 atm., what is
    7·1 answer
  • Which of the following is not a natural change to the envlronment? drought , flood, disease ranching​
    14·2 answers
  • What enzymes Break it down sugar ???
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!