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
Sever21 [200]
3 years ago
10

During which changes of state does the motion of the atoms decrease?

Chemistry
2 answers:
lesantik [10]3 years ago
4 0

freezing and condensation

Explanation:

The motion of the atoms decreases during freezing and condensation. These are phase changes that increases the molecular attraction between particles and forces them to come closer.

Freezing is a phase change from liquid to solid. It is usually achieved by removing heat from a substance and cooling it.

Condensation is a phase change from gases to liquid. .

Gases have the greatest motion because they have little to no attractive forces between them.

Phase changes from gas to solid to liquid generally reduces the motion of the atoms.

Learn more:

Phase change brainly.com/question/1875234

#learnwithBrainly

Thepotemich [5.8K]3 years ago
3 0

Answer:

FREEZING AND CONDENSATION

Explanation:

You might be interested in
Which phase change is exothermic?
DerKrebs [107]
Freezing, condensation, Deposition.
8 0
3 years ago
When 45 g of an alloy, at 25oC, are dropped into 100.0 g of water, the alloy absorbs 956 J of heat. If the final temperature of
taurus [48]

Answer:

The answer to the question is

The specific heat capacity of the alloy = 1.77 J/(g·°C)

Explanation:

To solve this, we list out the given variables thus

Mass of alloy = 45 g

Initial temperature of the alloy = 25 °C

Final temperature of the alloy = 37 °C

Heat absorbed by the alloy = 956 J

Thus we have

ΔH = m·c·(T₂ - T₁) where  ΔH = heat absorbed by the alloy = 956 J, c = specific heat capacity of the alloy and T₁ = Initial temperature of the alloy = 25 °C , T₂ = Final temperature of the alloy = 37 °C  and m = mass of the alloy = 45 g

∴ 956 J = 45 × C × (37 - 25) = 540 g·°C×c  or

c = 956 J/(540 g·°C) = 1.77 J/(g·°C)

The specific heat capacity of the alloy is 1.77 J/(g·°C)

3 0
3 years ago
Determine moles of 1.5g of sodium carbonate.
KIM [24]

Answer:

0.014mol

Explanation:

Given parameters:

Mass of Na₂CO₃  = 1.5g

Unknown:

Number of moles  = ?

Solution:

Number of moles of a compound is mathematically expressed as;

  Number of moles  = \frac{mass}{molar mass}  

 Molar mass of  Na₂CO₃  = 2(23) + 12 + 3(16) = 106g/mol

 Number of moles = \frac{1.5}{106}   = 0.014mol

8 0
2 years ago
What is the answer of these compound
olganol [36]
BaO, Barium Oxide. 

Na2SO4, Sodium Sulfate.

CuO, Copper (II) Oxide.

P2O5, Diphosphorus Pentoxide.

HNO3, Nitric Acid.

CO32-, Molecular Formula. 

Hope this helps. :)
8 0
3 years ago
Calculate the average atomic mass of element X using the table below. Then use the periodic table to identify the element. Separ
Ksenya-84 [330]

Answer:

126.8, Iodine

Explanation:

  • mass ×abundance/100
  • (126.9045×80.45/100)+(126.0015×17.23/100)+(128.2230×2.23/100)
  • 102.1+21.7+3=126.8

<em>IODINE</em><em> </em><em>has</em><em> </em><em>an</em><em> </em><em>atomic</em><em> </em><em>mass</em><em> </em><em>of</em><em> </em>126.8 or 126.9

4 0
3 years ago
Other questions:
  • Imagine that small pieces of the metals copper, magnesium and iron are placed in three test tubes labeled A, B, and C, respectiv
    6·1 answer
  • which statement besy describes how the calormeter can be used to determine ghe specific heat capacity of the metal sample
    8·1 answer
  • Physical properties are :
    10·1 answer
  • The founder of Islam was _____. Abbas ibn Abd al-Muttalib Muhammad Abu Bakr Khosrau
    12·2 answers
  • Which of the following equations is balanced?
    10·1 answer
  • The summary or ending of your experiment​
    7·1 answer
  • The following properties are either physical or chemical. Which one is different from the rest based on those two category? A.)
    9·2 answers
  • Which statement is true according to the kinetic theory?
    11·1 answer
  • A single replacement reaction is a reaction in which one element replaces a similar element within a compound. True False
    6·2 answers
  • A balloon contains a 10% glucose solution. The balloon is permeable to water but not to glucose. A beaker contains a 5% glucose
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!