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son4ous [18]
3 years ago
14

Mendeleev arranged the elements by what physical property? atomic number atomic mass boiling point density

Chemistry
2 answers:
____ [38]3 years ago
5 0

Answer : The correct option is, Atomic mass.

Explanation :

According to Mendeleev, the elements and their compounds having same chemical properties showed a periodic trend. He arranged the elements having similar properties below each other into groups.

He arranged the elements in order of their increasing relative atomic masses.

Hence, the correct answer is, Atomic mass.

m_a_m_a [10]3 years ago
3 0
Mendeleev arranged the elements according to their atomic masses
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Write a balanced chemical equation based on the following description:
goblinko [34]

<u>the balanced chemical equation was shown here :</u>

2 K3PO4 (aq) +  3 NiBr2(aq)      ------------>>   Ni3(PO4)2 (s) +  6 KBr (aq)

5 0
2 years ago
A) Suggest one possible reason for the general trend indicated on the graph between 1910 and 2000.?
matrenka [14]
One possible reason for the general tread could be the rise in population and the need to sustain oil production for items and objects dependent upon oil or creation or operation. 

It may be sustainable due do the dependence on oil already... Yet could change at any minute due to the use of anything new. 

Well, becoming more ecological in nature. Using less plastic and recycling more, getting off of conventional cars, getting more educated about even more techniques. 

I hope that may help, if not, just tell me. :D 
8 0
3 years ago
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zhannawk [14.2K]

Answer:

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Explanation:

4 0
3 years ago
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Can someone please describe what they’re seeing in this picture?
Oduvanchick [21]

Answer:

In the given figure, There are two atoms -

  • Sodium ( Na )
  • Chlorine ( Cl )

sodium has one electron in valence shell and to get noble gas configuration ( stability ) it need to donate the outer most electron.

whereas,

chlorine has 7 electrons in valence shell and to get noble gas configuration ( stability ) it need to get one more electron.

in this condition Na ( sodium ) donates it's outermost electron to Cl ( chlorine ) and both became stable.

but now sodium has more number of protons than the electrons hence it get positive (+) charge and chlorine has more electrons than the protons hence it get negative (-) charge

so, they get stick to each other by strong electrostatic force acting on the charged atoms and forms a salt " NaCl " ( sodium chloride ) .

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

5 0
2 years ago
how is substitution reaction in alkanes different from dehydrogenation reaction since both involve removing a hydrogen atom from
Ilia_Sergeevich [38]

Answer:

See Explanation

Explanation:

A substitution reaction means the replacement of one or more hydrogen atoms in an alkane by another atom or group. It does not introduce a double bond into the product. The product retains single bonds between the species present.

For instance;

CH4 + Cl2 -------> CH3Cl +HCl

is a substitution reaction

Dehydrogenation is the process of removing two hydrogen atoms from a saturated compound compound thereby yielding an unsaturated product.

E.g

C2H6 --------->C2H4 + H2

The key difference is that substitution reaction yields a saturated product while dehydrogenation yields an unsaturated product.

8 0
3 years ago
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