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
Lunna [17]
3 years ago
13

Explain using the particle theory why objects generally expand when heated and contract when cooled?

Chemistry
1 answer:
seraphim [82]3 years ago
4 0
When heated, particles vibrate faster, thus increasing the distance between one another. The distance between these particles results in changes of state. Therefore, increased molecular motion results in expansion of an object. This works vice versa for cooling. As the vibrations slow down, the particles become closer together. This results in contraction.
You might be interested in
Carbon and silicon are tetravalent but ge sn pb show di valency. Why
Anuta_ua [19.1K]

<u>Answer:</u>

Carbon and silicon both are tetravalent elements as compared to germanium, tin, and lead which are divalent.

That's because Ge, tin, and Pb show inert pair effect and has a greater nuclear effective charge on the 's' electrons due to poor shielding effect.  .That's why these elements are not able to share their valence electrons while carbon and silicon does and show "catenation" which is the ability to form long chain molecules.

4 0
3 years ago
How did modern scientists experiment with Van Goghs paints to determine their chemical reactions?
Vlada [557]

Answer:

the would test random expirements

7 0
2 years ago
Can someone me Help please
soldier1979 [14.2K]

Independent would be the amount of sugar given and the dependent would be the amount of cavities

Scientists have control groups so they can have evidence to show the difference between that one and the experimental ones.

And the independent variable is the one that changes because with out it changing you wouldn't get different results.

I could be wrong tho sorryyy! but i hope this helps

8 0
3 years ago
10. Liquid changing to gas only at the surface is called
mina [271]

Answer:

Evaporation

Explanation:

Though it doesn't require high temperatures to do so

3 0
3 years ago
Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture
tekilochka [14]

Answer:

use google and use the first link

Explanation:

6 0
2 years ago
Other questions:
  • Given the unbalanced reaction: P₄+ O₂ <img src="https://tex.z-dn.net/?f=%5Crightarrow" id="TexFormula1" title="\rightarrow" alt=
    7·1 answer
  • When copper metal is added to silver nitrate in solution, silver metal &amp; copper (ii) nitrate are produced. What mass of silv
    11·1 answer
  • How does brock answer the charge that euthanasianis the deliberating killing of na innocent person?
    12·1 answer
  • The equilibrium constant, Kc, for the following reaction is 1.55 at 667 K.
    8·1 answer
  • Which of the following is a basic need?<br> car<br> shelter<br> bike<br> computer
    12·2 answers
  • Awdawdawdadawdanodawdadwadadaw
    7·1 answer
  • What are five different types of air pollutant each
    10·1 answer
  • The domain level divides
    12·1 answer
  • Write the uses of Ions .​
    9·1 answer
  • During what stage of the life cycle is an animal able to reproduce? (2 points) a Adolescent b Adult c Embryo d Infant
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!