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
lara31 [8.8K]
3 years ago
13

What change causes a substance to change states of matter?

Chemistry
2 answers:
pochemuha3 years ago
3 0
If the states of matter have changed such as from solid to liquid, you have to remove or add energy.
arlik [135]3 years ago
3 0

Answer: Option (A) is the correct answer.

Explanation:

It is known that kinetic energy is the energy obtained by an object due to its motion.

And, when we increase the temperature of a substance then there will occur an increase in the kinetic energy of its molecules.

Also,      K.E = \frac{3}{2}kT

So, kinetic energy is directly proportional to the temperature. As a result, on increasing the temperature more number of collisions will take place between the molecules.

Therefore, we can conclude that amount of kinetic energy in the substance’s particles changes its states of matter.

You might be interested in
PLEASE HELP!!!!
salantis [7]

The answer is B.) 10^5

I hope this helps :D

5 0
3 years ago
Read 2 more answers
Write the appropriate symbol for each of the following isotopes: (a) Z 74, A 186; (b) Z 80, A 201; (c) Z 34, A 76; (d) Z 94, A 2
beks73 [17]

Answer:  a)  _{74}^{186}\textrm{W}

b) _{80}^{201}\textrm{Hg}

c)  _{34}^{76}\textrm{Se}

d) _{94}^{239}\textrm{Pu}

Explanation:

General representation of an element is given as:_Z^A\textrm{X}

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

In an atom, when neutrons or protons are lost or gains, it directly affects the mass number of an atom.

Atomic number is defined as the number of protons or number of electrons that are present in an atom.

It is characteristic of a particular element.

Atomic number = Number of electrons = Number of proton

a) Z 74, A 186: _{74}^{186}\textrm{W}

b) Z 80, A 201: _{80}^{201}\textrm{Hg}

c) Z 34, A 76: _{34}^{76}\textrm{Se}

d) Z 94, A 239.: _{94}^{239}\textrm{Pu}

6 0
3 years ago
An unknown gas is contained in a sealed container. Over time, the gas is gradually cooled until it becomes a solid. Determine wh
Alecsey [184]

Answer:D molecular attraction increases as temp decreases

Explanation:A,B would require data not available. C is missing. The question is a mess.

5 0
3 years ago
Read 2 more answers
Do you think a battery system would OR wouldn’t have energy? If so, give me evidence/observations as to why you think so.
Basile [38]

Answer:

Yes it would

Explanation: Well it kinda depend on the voltage and how the battery has been in use or based on the condition

6 0
3 years ago
What is the main idea of the kinetic theory of heat?
Goshia [24]
 – liquids, solids or gases – are made up of atoms and molecules that are in constant motion.<span> The theory also states that collisions between atoms and molecules are elastic</span>
5 0
3 years ago
Other questions:
  • How does heat transfer effect our daily lives?
    15·1 answer
  • Determine the frequency of light with a wavelength of 4.257x10^-7cm
    14·1 answer
  • 1. How many grams of CuNO, are required to produce 700.0 mL of a 2.0 M CUNO,
    7·1 answer
  • the recommended daily calcium I take for a woman over 50 years of age is 1200 mg. if one cup of milk has 306mg of Calcium how ma
    12·1 answer
  • PLEASE HELP ME ANSWER THIS ASAP! !​
    10·2 answers
  • ) The color of the __________ litmus paper into ___________ tell us that the solution of the compound is ________________ in nat
    10·1 answer
  • I am he throws a softball through the air what are the different forces acting on the ball why it’s in the air
    6·1 answer
  • What is meant by the term isotopes?
    6·1 answer
  • What is the temperature of 0.5 moles of water vapor that occupies 120 dm3 and applies a pressure of 15,000 Pa to its container?
    8·1 answer
  • Which TWO properties of water make it
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!