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prisoha [69]
3 years ago
14

What two factors determine whether a molecule is polar or not?

Chemistry
1 answer:
Bad White [126]3 years ago
5 0

Answer:

electronegativity of bonded atoms and shape.

Explanation:

if the shape of molecule is symmetric it will non polar. The polar molecules are trigonal in shape.

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion and compound is polar.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive and compound will polar.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.

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1kg of hydrogen is burned in oxygen how much energy is released
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Answer:

121 million joules energy is released

Explain :

As there are 500 moles of hydrogen gas in a kilogram, this means that burning a kilogram of hydrogen gas releases 500 times as much energy or 121 million joules .

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Plz answer correctly....The concentration of either the H+ ion or the OH − ion is given for four aqueous solutions at 298 K.?
Rudiy27

Definitions needed:  

pH = -log[H^+]  

pOH = -log[OH^-]  

pH + pOH = 14  

[H^+]*[OH^-] = 10^-14  

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4 years ago
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PLEASE HELPPP
rusak2 [61]

Answer; molecule

Explanation:

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