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Akimi4 [234]
3 years ago
10

After he finished his work, Mendeleev predicted _____.

Chemistry
1 answer:
Alex17521 [72]3 years ago
4 0

Answer:

the properties of three undiscovered elements  is the correct answer.

Explanation:

After he completed his work Mendeleev predicted the properties of the undiscovered elements.

In the year 1871, Dmitri Mendeleev predicted the detailed existence and the properties of the three elements that are undiscovered and he gained tremendous fame.

He left the gap in the table to put the elements which are not identified at that time and by glancing at the physical and chemical properties of an element next to the gap, Mendeleev could predict the properties of the not discovered elements.

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3 years ago
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Completion
Snowcat [4.5K]

Answer:

  1. Compress
  2. Fixed
  3. Melts
  4. Melting Point
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Explanation:

Solids tend to be dense and difficult to <u>compress.</u>

They do not  flow or take the shape of their containers, like liquids do, because  the particles in solids vibrate around <u>fixed</u> points.

When a solid  is heated until its particles vibrate so rapidly that they are no longer  held in fixed positions, the solid <u>melts</u>.  

<u>Melting point</u> is the  temperature at which a solid changes to a liquid. The melting and <u>freezing point</u>  of a substance are at the same temperature.

In general,  ionic solids tend to have relatively <u>high</u>  melting points, while  molecular solids tend to have relatively low melting points.

Most  solids are <u>crystalline</u>

The particles are arranged in a pattern known  as a crystal <u>lattice</u>

The smallest subunit of a crystal lattice is the <u>unit cell</u>  

Some solids lack an ordered internal structure   and are called <u>amorphous solids.</u>

7 0
3 years ago
Which was briefly an anomaly in the fossil record of humans?
Goshia [24]
Just because eyydtyyy
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4 years ago
What pressure must be applied to keep a gas at 750 torr and 300 K at a constant volume of 200 mL if the temperature is raised to
Ainat [17]
P1/t1=p2/t2
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=1125torr
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3 years ago
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After passing, it is important to always follow through. T/F
VMariaS [17]

Answer:

t

Explanation:

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