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defon
3 years ago
5

What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0

and that of chlorine is 3.16?

Chemistry
1 answer:
nevsk [136]3 years ago
3 0
Ca-Cl is an ionic bond. We know this because the difference between their electronegativities is 2.16.The electronegativity tells us which atom will attract the electron more than the other. Hence, chlorine attracts the electron a lot more than the calcium.A difference of more than 1.6 (or 1.7 depending on the source) implies that the electrons are so unevenly shared, that the bond is ionic, rather than polar covalent.

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(1 point) Hydrogen fluoride (HF) has a lower molecular weight compared to hydrogen chloride (HCl), yet its boiling temperature i
Setler79 [48]

Answer:

The correct option is: D. Two types of secondary (or intermolecular) bonding are present between hydrogen fluoride molecules, whereas only one type of secondary bonding is present between hydrogen chloride molecules

Explanation:

Boiling point of a chemical substance depends on the molecular mass and the intermolecular forces, which are the interactive forces present between chemical species

1. The <u>molecular mass of hydrogen fluoride (HF) is less than hydrogen chloride (HCl). </u>

2. But the <u>intermolecular forces present between the HF molecules are stronger </u>than the intermolecular forces present between the HCl molecules.

This is because hydrogen fluoride exhibits two types of intermolecular forces: strong hydrogen bonding and dipole-dipole interactions. Whereas, hydrogen chloride exhibits only one type of intermolecular force i.e. dipole-dipole interactions.

<u>Therefore, as a net result, the boiling point of HF is higher than the boiling point of HCl.</u>

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3 years ago
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4 0
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gulaghasi [49]

Answer:

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5 0
3 years ago
Read 2 more answers
In the following equation:
Luda [366]

Answer:

FeCl₃

Explanation:

                 4FeCl₃  +   3O₂     => 2Fe₂O₃+ 6Cl₂

Given =>  7moles     9moles

A simple way to determine which reagent is the limiting reactant is to convert all given data to moles then divide by the respective coefficients of the balanced equation. The smaller value will be the limiting reactant.

                 4FeCl₃     +   3O₂     => 2Fe₂O₃+ 6Cl₂

Given =>  7/4 = 1.75*     9/3 = 3

*Smaller value => FeCl₃ is limiting reactant.  

NOTE: However, when working problems, one must use original mole values given.

   

7 0
3 years ago
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