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2 years ago

Melting The change from a _ to a __. Choices: Solid, Liquid, and Gas

Chemistry

2 answers:

Elenna [48]2 years ago

8 0

Answer:

Solid to a liquid

I hope this helped <3

Annette [7]2 years ago

7 0

Explanation:

idk.........................

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Which book has kinetic energy

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Where is the picture

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3 years ago

S-2-iodooctane lost his opticaly activity in soln on tratment wwithNaI. Explain

IceJOKER [234]

Answer:

Repeated SN2 reactions occur leading to the formation of a racemic mixture

Explanation:

S-2-iodooctane is a chiral alkyl halide with an asymmetric carbon atom. The presence of an asymmetric carbon atom implies that it can rotate plane polarized light and thus lead to optical isomerism. The two configurations of the compound are R/S according to the Cahn-Prelong-Ingold system.

However, when S-2-iodooctane is treated with sodium iodide in acetone, repeated SN2 reactions occur since the iodide ion is both a good nucleophile and a good leaving group. Hence a racemic modification is formed in the system with time hence we end up with (±)- Iodooctane.

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3 years ago

Which element in Period 3 has the largest atomic radius?

horsena [70]

Answer:

sodium

Explanation:

6 0

2 years ago

Orbitals which valence electrons are found for calcium

galina1969 [7]

The 4th energy level (row), 's' orbital block, 2nd group (column). The valence electrons are found in the highest energy level of the electron configuration in the 's' and 'p' orbitals. In the case of calcium this is 4s2 . This gives calcium an 's' orbital with a pair of electrons in its valence shell

8 0

3 years ago

When barium reacts with tellurium to form an ionic compound, each metal atom loses electron(s) and each nonmetal atom gains elec

Bess [88]

<u>Answer:</u> The ionic compound formed is $baF_2$ (barium fluoride)

<u>Explanation:</u>

Ionic compound is formed by the complete transfer of electrons from 1 atom to another atom. The cation is formed by the loss of electrons by metals and anions are formed by gain of electrons by non metals.

Taking the metal as barium and non-metal as fluorine.

Barium is the 56th element of the periodic table having electronic configuration of $[Xe]6s^2$

This element will loose 2 electrons and will form $Ba^{2+}$ ion

Fluorine is the 9th element of the periodic table having electronic configuration of $[He]2s^22p^5$

This element will gain 1 electron and will form $F^{-}$ ion

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

Hence, the ionic compound formed is $baF_2$ (barium fluoride)

7 0

2 years ago

Melting The change from a _____________ to a ______________. Choices: Solid, Liquid, and Gas

Melting The change from a _ to a __. Choices: Solid, Liquid, and Gas