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cluponka [151]
3 years ago
14

Use the diagram to answer the question.

Chemistry
2 answers:
dimulka [17.4K]3 years ago
6 0

A: sublimation

B: condensation

C: melting

Explanation:

When in a solid between the molecules we have only weak forces the solid may undergo a face transition end by increasing temperature it will transform in a gas without going through the liquid state. This is sublimation.

When we drop the temperature of a gas between a certain limit were the forces between the molecules are no longer inhibited so they will stick together in a liquid form. This is condensation.

When a solid is transformed in a liquid, the temperature is high enough to overcome interactions between the particles so the molecules will gain a degree of freedom. This is melting.

Learn more:

brainly.com/question/1473540

#learnwithBrainly

Zanzabum3 years ago
4 0

Answer:

1. sublimation 2. condensation 3. melting

Explanation:

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4 years ago
Select the correct term to complete each sentence.
leva [86]

Answer: 1. halve

2. halve

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Explanation:

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E=\frac{hc}{\lambda}

E= energy

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2. The between wavenumber and energy of the wave follows the equation:

E=h\times c\times \bar{\nu}

E= energy

\bar{\nu}\nubar = wavenumber of the wave

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c = speed of light

Thus as wavenumber and energy have direct relation, when wavenumber will halve , energy will be halved.

3. The relationship between energy and frequency of the wave follows the equation:

E=h\times \nu

where

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3 0
3 years ago
How many hydrogen grams can be obtained if
kipiarov [429]

hi im breanna

Answer:

The mole is simply a very large number that is used by chemists as a unit of measurement.

Explanation:

The mole is simply a very large number,  

6.022

×

10

23

, that has a special property. If I have  

6.022

×

10

23

hydrogen atoms, I have a mass of 1 gram of hydrogen atoms . If I have  

6.022

×

10

23

 

H

2

molecules, I have a mass of 2 gram of hydrogen molecules. If I have  

6.022

×

10

23

 

C

atoms, I have (approximately!) 12 grams.

The mole is thus the link between the micro world of atoms and molecules, and the macro world of grams and litres, the which we can easily measure by mass or volume. The masses for a mole of each element are given on the periodic table as the atomic weight. So, if have 12 g of  

C

, I know, fairly precisely, how many atoms of carbon I have. Given this quantity, I know how many molecules of  

O

2

are required to react with the  

C

, which I could measure by mass or by volume.

5 0
3 years ago
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4vir4ik [10]

Answer: 0.004 moles

Explanation:

Amount of substance= mass/ molar mass

Mass= 250mg or 0.25g

Molar mass= 58.44gmol-1

Amount= 0.25/58.44

= 0.004 moles

5 0
3 years ago
What periodic trends exist for electronegativity?
Anna007 [38]
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