Chemistry, 15.12.2019 04:31 mitchellk872

Which substance is correctly paired with its type of bonding?
(1) nabr—nonpolar covalent(2) hcl—nonpolar covalent(3) nh3—polar covalent
(4) br2—polar covalent

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Answer from: Angel1107

(3) NH_3 - polar covalent

Explanation: An ionic bond is formed when the electrons are completely transferred.

A covalent is formed by sharing of electrons and is called as polar covalent when there is electronegativity difference among elements and non polar covalent when there is no electronegativity difference among elements.

(1) NaBr —nonpolar covalent: This forms ionic bond by transfer of electrons from to forming Na^+ and Br^- respectively.

2) HCl—nonpolar covalent: This forms a polar covalent bond as the electronegative difference between hydrogen and chlorine is high.

3) NH_3 -polar covalent: This forms a polar covalent bond as the electronegative difference between hydrogen and nitrogen is high.

4) Br_2 —polar covalent: This forms a non polar covalent bond as there is no electronegative difference between same bromine atoms.

Which substance is correctly paired with its type of bonding? (1) nabr—nonpolar covalent(2) hcl—non

Answer from: Quest

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is $1s^{2}2s^{2}2p^{6}3s^{1}$ and electronic configuration of phosphorous is $1s^{2}2s^{2}2p^{6}3s^{2}3p^{3}$ .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

$3na + p \rightarrow na_{3}p$

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

Electrons are transferred from atoms of to atoms of this transfer makes the sodium atoms and the

Answer from: Quest

2b2t

explanation:

2b2t

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Which substance is correctly paired with its type of bonding?
(1) nabr—nonpolar covalent(2) h...

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