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3 years ago

When two atoms are bonded and have a large difference in electronegativity: HELP PLEASEEE

Chemistry

1 answer:

Fofino [41]3 years ago

3 0

Answer:

Second option - The bond is very polar

Explanation:

Electronegativity of an basically refers to the degree at which an electron is able to attract electrons to itself.

There are different types of bonds between atoms, depending on the electronegativity of the atoms.

When there is a large difference in electronegativity, it pretty much means that one atom would draw electrons more than the other. When this happens, the bond is said to be polar because there is uneven distribution of the charges.

The second option is the correct answer in thus question.

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What is the only intermolecular force present in nonpolar compounds?

Gnom [1K]

The intermolecular force of attraction between non-polar molecules is called as dispersion force . Another trem for dispersion force is London dispersion force.

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3 years ago

Given: N2 + 3Cl2 → 2NCl3, ΔH = 464 kJ/mol Use the given bond energies and the periodic table to calculate the energy change in t

guapka [62]

The given chemical reaction is:

$N_{2}+3Cl_{2}-->2NCl_{3}$

Δ $H^{0}_{reaction}=$ ∑BE(reactants)-∑BE(products)

= {(941 kJ/mol) + (3 * 242 kJ/mol)} -[{2*(3*200 kJ/mol)}]

= 467 kJ/mol

Calculating the change in heat when 85.3 g chlorine reacts in the above reaction:

Moles of chlorine = $85.3 g Cl_{2}* \frac{1 mol Cl_{2}} {70.91 g Cl_{2} }$

= 1.20 mol $Cl_{2}$

Heat change when 1.20 mol chlorine reacts

= $1.20 mol * \frac{467kJ}{mol} =560.4 kJ$

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3 years ago

Which elements make up the compound Cs2C3?

lapo4ka [179]

Caesium
and
carbon
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4 years ago

How many mole of CO2 are in 58.9g of the compound

vivado [14]

Convert grams to moles and use Avogadro's number 6.022x10tho the 23rd power. Hope this helps

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3 years ago

Predict whether the following reactions will be exothermic or endothermic. Reaction A. N 2 ( g ) + 3 H 2 ( g ) ⟶ 2 NH 3 ( g ) Re

Marina86 [1]

Answer :

Exothermic reactions : A, B, D

Endothermic reaction : C

Explanation :

Endothermic reaction : It is defined as the chemical reaction in which the energy is absorbed from the surrounding.

In the endothermic reaction, the energy of reactant are less than the energy of product.

Exothermic reaction : It is defined as the chemical reaction in which the energy is released into the surrounding.

In the exothermic reaction, the energy of reactant are more than the energy of product.

As we know that, heat is released in the bond formation and heat is required in the bond breaking.

Reaction (A):

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$

In this reaction, the more bonds are formed than the bond broken. That means, heat will be released. So, It is an exothermic reaction.

Reaction (B):

$S(g)+O_2(g)\rightarrow SO_2(g)$

In this reaction, burning of sulfur with oxygen takes place. That means, heat will be released. So, It is an exothermic reaction.

Reaction (C):

$2H_2O(g)\rightarrow 2H_2(g)+O_2(g)$

This reaction is a decomposition reaction. That means, heat will be required. So, It is an endothermic reaction.

Reaction (D):

$2F(g)\rightarrow F_2(g)$

In this reaction, formation of fluorine molecule from its atoms releases heat. So, It is an exothermic reaction.

Hence, the exothermic reactions are, A, B, D and endothermic reaction is, C

3 0

3 years ago