All categories

4 years ago

What is electronegativity

Chemistry

2 answers:

Sindrei [870]4 years ago

7 0

Electronegativity is a measure of the tendency of an atom to attack a boding pair of electrons

I hope that's help !

labwork [276]4 years ago

4 0

When first looking at the word electronegativity, we see the word <em>electro</em> at the beginning so it has to do with electrons which have a negative charge.

Electronegativity is a chemical property and it's how much an atom will be attracted to somebody else's electrons. An atom's electronegativity is affected by its atomic number which is the number of protons in its nucleus and how far away the valence electrons are from the nucleus. Valence electrons are the outermost electrons.

You might be interested in

Número cuántico que designa el nivel de energía en el que se localiza un electrón:

Fed [463]

Answer:

Creo que la respuesta es n. Transalation : I think the answer is N.

Explanation:

4 0

3 years ago

If you tried forming an ionic bond between sodium and aluminum, would it work? Why? (please help! this is for a friend)

sineoko [7]

Answer:

The answer to your question is No

Explanation:

Ionic bonding is a kind of bonding that involves the attraction between oppositely charged ions. That means that one element must have a positive charge and the other a negative charge.

Also, the difference in electronegativity of both elements must be higher than 1.7.

Both Sodium and Aluminum are positively charged then an ionic bond is not possible to be formed.

Difference of electronegativity = 1.61 (Al) - 0.93(Na)

= 0.63

To form an ionic bond the difference of electronegativity must be higher than 1.7.

3 0

4 years ago

Does anyone know the answer to this chemistry question?!?

Pepsi [2]

Answer:

Mass of HCl = 73 g

Explanation:

Given data:

Mass of hydrogen = 2 g

Mass of HCl = ?

Solution:

First of all we will write the balance chemical equation:

H₂ + Cl₂ → 2HCl

Number of moles of hydrogen = 2 g/ 2g/mol

Number of moles of hydrogen = 1 mol

Form balanced chemical equation compare the moles hydrogen with HCl.

H₂ : HCl

1 : 2

Mass of HCl:

Mass of HCl = number of moles × molar mass

Mass of HCl = 2 mol × 36.5 g/mol

Mass of HCl = 73 g

7 0

4 years ago

A 996.9 g sample of ethanol undergoes a temperature change of -70.98 °C while releasing 62.9

Volgvan

Answer:

$c=3.71\ J/g^{\circ} C$

Explanation:

Given that,

Mass of sample, m = 996.9 g

The change in temperature of the sample, $\Delta T=-70.98^{\circ}C$

Heat produced, Q = 62.9 calories = 263173.6 J

The heat released by a sample due to change in temperature is given by :

$Q=mc\Delta T$

Where

c is the specific heat capacity

So,

$c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{263173.6}{996.9\times 70.98}\\\\c=3.71\ J/g^{\circ} C$

So, the specific heat of ethanol is equal to $3.71\ J/g^{\circ} C$ .

3 0

4 years ago

Select the correct answer.

White raven [17]

Answer:

The average atomic mass of sulfur is 32.065u

6 0

4 years ago