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spin [16.1K]
3 years ago
9

When a substance is heated ,the kinetic energy of its molecules

Chemistry
1 answer:
Simora [160]3 years ago
5 0

Answer:

When a substance is heated ,the kinetic energy of its molecules also increase.

Explanation:

K.E is directly proportional to T

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What do you call each of the following changes of state:
Alinara [238K]

a. Solid to liquid  - melting process

b. Liquid to gas  - evaporation process

c. Gas to solid  - deposition process

d. Solid to gas  - sublimation process

e. Liquid to solid  - solidification process

f. Gas to liquid - condensation process

8 0
3 years ago
What is the name for this molecule? 3-heptyne 3-heptene 3-hexyne 3-hexene
sweet-ann [11.9K]

The iupac name of the compound will be hex-3-yne or 3-hexyne. By marking number of carbon in the given compound, it was found that triple bond comes at third position and there are total 6 carbon in the compound. So it will have Hex as a prefix and as it contains triple bond so it will have yne as a suffix and as the triple bond is at third position, so it will be hex-3-yne or 3-hexyne.

3 0
3 years ago
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Tips for memorizing the first 20 elements of the periodic table?​
Anna [14]

Answer:

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hydrogen              helium                     lithium                     beryllium

be bore on the balloon, balloon pops, hydrant drops and makes a car bomb

           =                                                                                                  =

    boron                                                                                              carbon

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        =                                

nitrogen

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             =                                               =                                      =

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(try making a story out of the elements, use your imagenation)

7 0
2 years ago
Read 2 more answers
If there are 50 grams of U-238 on day zero of radioactive decay, how much will there be after 4.5 billion years? A) 0.0 grams B)
Natalija [7]

Answer:

= 25 g

Explanation:

Using the formula;

A = A₀ (1/2)^(t/h)

where A is the final amount,

A₀ is the initial amount of the substance,

t is the time and

h is the half-life of the substance,

In this case; the half life of U-238 h is equal to 4.47 billion years.

A = A₀ (1/2)^(t/h)

A = 50 (1/2)^(4.5 / 4.47)

   = 24.88

  <u> = 25 g</u>

7 0
3 years ago
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A 23.9g object was submerged into 50.5ml of water. If the water rose to 89.4ml then what is the object's density?
timama [110]

Answer:

50.2

Explanation:

4 0
3 years ago
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