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rusak2 [61]
3 years ago
9

To make a table of elements, dmitri

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
6 0

The question is incomplete, the complete question is;

To make a table of the elements, dimitri Mendeleev sorted the elements according to their?

Answer:

Atomic weights

Explanation:

Dimitri Medeleeve is a Russian scientist who worked assiduously on the project of developing a system of classifying all the elements. His periodic table was filled with spaces as many atoms weren't yet discovered. 'Eka' prefix was used to name some elements whose properties closely resembled that of their predecessors in Mendeleev's system of classification.

The dependence of the atomic properties on the weight of the atom was the basis for Mendeleeves' original classification. According to Medeleeve, elements having similar chemical properties are also expected to have similar atomic weights and their atomic weights was found to increase regularly.

The Mendeleeve concept of periodic arrangement of elements is the closest precursor of the modern periodic table as it is used in chemistry. Mendeleev arranged the elements in order of increasing relative atomic mass .

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Of the groups given, which are the least chemically reactive?
AfilCa [17]

Answer:

Group 8A

Explanation:

This is because the elements in Group 8A is stable, what I mean is this elements have the maximum number of electrons in there last orbit so they dont need to form any compund with any other element in the periodic table.

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2 years ago
How will an ecysosyem's population be impacted if humans clear out all of the trees?
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Answer:

Without trees formerly forested areas would become drier and more prone to extreme droughts. When and if rain did come flooding would be disastrous and massive erosion would impact oceans smothering coral reefs and other marine habitats

Explanation:

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3 0
3 years ago
Balance the equation <br> __Cu+__Ag(NO3)——__Cu(NO3)2+__Ag
Alex_Xolod [135]
<h2><u>Answer</u> : </h2>

Balanced chemical equation for above reaction :

\mathrm{Cu +2 \:  AgNO_3 \longrightarrow Cu(NO_3)_2 + 2 \: Ag}

This is a displacement reaction, where copper (Cu) being morereactive than Silver (Ag) displaces Silver from its compound " Silver Nitrate " to form " Copper Nitrate " and silver .

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6 0
3 years ago
The formula vw=f⋅λ describes the relationship between the speed of a wave (vw), and its frequency (f) and wavelength (λ). For ex
GrogVix [38]

If the wavelength of the wave is increased to 10 m, the frequency of the wave will be 60 Hz

<h3>Data obtained from the question </h3>
  • Wavelength (λ) = 10 m
  • Velocity (v) = 600 m/s
  • Frequency (f) =?

<h3>How to determine the frequency of the wave </h3>

The frequency, wavelength and velocity of a wave are related according to the following equation:

Frequency (f) = velocity (v) / wavelength (λ)

f = v / λ

With the above formula, we can obtain the frequency of the wave as follow

f = v / λ

f = 600 / 10

f = 60 Hz

Learn more about wave:

brainly.com/question/2903713

8 0
2 years ago
What two layers of the earth are made of rock
vagabundo [1.1K]

Answer: There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly com​posed of basalt.

Explanation:

The crust This is the outside layer of the earth and is made of solid rock, mostly basalt and granite.  Oceanic crust is denser and thinner and mainly com​posed of basalt.

3 0
3 years ago
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