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
tekilochka [14]
3 years ago
12

ASAP What is the main cause of any change of state?

Chemistry
2 answers:
forsale [732]3 years ago
7 0

Answer:

Hiya there!

Explanation:

Adding or removing energy from matter causes a physical change as matter moves from one state to another. ... Physical changes can also be caused by motion and pressure. Melting and freezing. When heat is applied to a solid, its particles begin to vibrate faster and move farther apart.

<em><u>Hope this helped!</u></em> :D

Sourced from "livescience.com"

Valentin [98]3 years ago
5 0

Answer:

Adding or removing energy.

Explanation:

Adding energy (heat) to liquid water causes it to become steam or vapor (a gas). And removing energy from liquid water causes it to become ice (a solid).

I hope you're talking about science lol but I forgot to check the subject. Hope this helps.

You might be interested in
Two isotopes of lithium are found in nature Li6 has a mass of 6. 02u and Li7 has a mass of 7.02u . Use the atomic weight of lith
alexandr402 [8]

The isotope that is more abundant, given the data is isotope Li7

<h3>Assumption</h3>
  • Let Li6 be isotope A
  • Let Li7 be isotope B

<h3>How to determine whiche isotope is more abundant</h3>
  • Molar mass of isotope A (Li6) = 6.02 u
  • Molar mass of isotope B (Li7) = 7.02 u
  • Atomic mass of lithium = 6.94 u
  • Abundance of A = A%
  • Abundance of B = (100 - A)%

Atomic mass = [(mass of A × A%) / 100] + [(mass of B × B%) / 100]

6.94 = [(6.02 × A%) / 100] + [(7.02 × (100 - A)) / 100]

6.94 = [6.02A% / 100] + [702 - 7.02A% / 100]

6.94 = [6.02A% + 702 - 7.02A%] / 100

Cross multiply

6.02A% + 702 - 7.02A% = 6.94 × 100

6.02A% + 702 - 7.02A% = 694

Collect like terms

6.02A% - 7.02A% = 694 - 702

-A% = -8

A% = 8%

Thus,

Abundance of B = (100 - A)%

Abundance of B = (100 - 8)%

Abundance of B = 92%

SUMMARY

  • Abundance of A (Li6) = 8%
  • Abundance of B (Li7) = 92%

From the above, isotope Li7 is more abundant.

Learn more about isotope:

brainly.com/question/24311846

#SPJ1

4 0
2 years ago
18-19. If a sample for spectrophotometric analysis is placed in a 10-cm cell, the absorbance will be 10 times greater than the a
miss Akunina [59]

Answer:

As long as it is a blank solution of the reagent, the Absorbance will be 0 regardless of the path length.

Explanation:

Absorbance of light by a reagent of concentration c, is given as

A = εcl

A = Absorbance

ε = molar absorptivity

c = concentration of reagent.

l = length of light path or length of the solution the light passes through.

So, if all.other factors are held constant, If a sample for spectrophotometric analysis is placed in a 10-cm cell, the absorbance will be 10 times greater than the absorbance in a 1-cm cell.

But the reagent blank solution is called a blank solution because it lacks the given reagent. A blank solution does not contain detectable amounts of the reagent under consideration. That is, the concentration of reagent in the blank solution is 0.

Hence, the Absorbance is subsequently 0. And increasing or decreasing the path length of light will not change anything. As long as it is a blank solution of the reagent, the Absorbance will be 0 regardless of the path length.

Hope this Helps!!!

5 0
3 years ago
A solid is cooled to a very low temperature assuming the mass remains constant how if at all does this affect the density of the
vekshin1
Temperature is related to the kinetic energy the atoms within any given substance. Within a solid, we can therefore assume that the density will increase as the solid is cooled to a low temperature, as this will cause a loss in kinetic energy and the atoms won't be able to move as freely.
8 0
3 years ago
The behavior of the _______ elements is not highly predictable.
Lera25 [3.4K]
C. transition, as they show variable oxidation states.
5 0
3 years ago
Read 2 more answers
I give brainliest help pls
ivann1987 [24]
I believe the answer is a compound because compounds can be separated when put together while mixtures can not.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the atomic number of the yet-undiscovered element directly below francium ( Fr) in the periodic table?
    14·1 answer
  • Write the empirical formula for C6H6
    14·2 answers
  • What is the purpose of strawberry seeds
    6·1 answer
  • Which statement correctly describes the differences between positive and negative acceleration?
    9·1 answer
  • Rank the following substances/solutions in order of lowest boiling point to highest boiling point where 1 has the lowest boiling
    14·1 answer
  • Air movement can affect how quickly evaporation occurs.<br> O True<br> O False
    9·1 answer
  • When an object such a a stone is dropped into water, it disturbs the surface of the water. Waves form at the surface of the wate
    12·1 answer
  • Matthew added a sample of sodium chloride to water and
    15·1 answer
  • Which of the following elements has the strongest ionization energy: Mg or Cl? Define ionization
    5·1 answer
  • (d)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!