Chemistry, 22.07.2019 15:00 Iakwe5061

Why is the brcl molecule polar? the shared electrons are closer to cl due to the greater electronegativity of chlorine. bromine has a large positive nucleus. three-dimensional geometry is asymmetrical. chlorine gains an electron whereas bromine loses one?

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Answer from: yentel110306

the shared electrons are closer to cl due to the greater electronegativity of chlorine.

Justification:

1) In a covalent bond (the bond between two non-metal elements) the electrons are shared.

2) When the two elements have different electronegativities the electrons are not evely shared: the element with the greatest electronegativity will pull the electrons with higher strength.

3) As consequence the electrons will be closer to the most electronegative atom creating a dipole moment, which is what causes the molecule to be polar.

4) You can learn the trend of electronegativity in the periodic table: in a group the electronegativity decreases downward. With this you do not need a table with the values of the electronegativities and can predict that the electronegativity of Cl is greater than the electronegativity of Br.

5) From above statements you can conclude that, due to its greater electronegativity, chorine will pull the electrons with greater strength, causing the molecule to be polar.

Answer from: Quest

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

Answer from: Quest

the balanced equation for reaction of ca metal with o2 to produce cao is as below

2 ca+ o2→ 2 cao2

explanation

the reaction is balanced since the number of atoms in reactant side is equal to number of atoms in product side. for example they are 2 atom of ca in reactant side and 2 atoms of ca in the product side.

the process is a meet the requirement of redox reaction because : calcium is oxidized from oxidation state 0 to 2+ while oxygen is reduced from oxidation state 0 to 2-

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Why is the brcl molecule polar? the shared electrons are closer to cl due to the greater electroneg...

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