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2 years ago

In order to participate in a hydrogen bond, a hydrogen atom must be covalently bonded to one of three elements. What are they?

Chemistry

1 answer:

Lyrx [107]2 years ago

5 0

Oxygen, Nitrogen and Fluorine

Explanation:

In order to participate in a hydrogen bond, a hydrogen atom must be covalently bonded to one of the oxygen, nitrogen and fluorine.

Hydrogen bonding is a type of dipole - dipole attraction between two specie.
It is an intermolecular force of attraction.
This bond type forms when hydrogen is bonded to a more electronegative atom.
These atoms are oxygen, nitrogen and fluorine
These species draws the electron shared more to themselves and leaves a partial positive charge on the hydrogen and a negative charge on them.
The electrostatic force of attraction between the hydrogen of one molecule and the O/N/F of another molecule cause the formation of hydrogen bonds.

learn more:

Hydrogen bonding brainly.com/question/10602513

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Which response includes all the following that are properties of most metals, and no other properties?

oksian1 [2.3K]

Answer:

The correct options are: Z1) They tend to form cations, and Z4) They tend to form ionic compounds when they combine with the elements of Group VIIA.

Explanation:

The chemical elements that have a tendency of losing their valence electrons and are generally present on the left-side of the periodic table are known as metals.

The general characteristics of metals are malleability, ductility, lustre, high thermal and electrical conductivity.

The metals readily lose their valence electrons present in their valence electron shell to form positively charged ions called cations and thus have low ionization energy.

They also tend to form ionic compounds or salts with the reactive non-metals belonging to the Group VIIA of the periodic table.

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Which Ions oxidize aluminum? Li^+, Ca^2+, Ag+, Sn^2+

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Aluminum can be oxidized by $Li^{+}$ and $Ca^{2+}$

<h3>What is oxidizing?</h3>

Some of the metal corrodes (or oxidizes) and forms the corresponding metal oxide on the surface as a result of a chemical reaction between the metal surface and the oxygen in the air. The corrosion products that occur in some metals, like steel, are highly apparent and loose.

According to reactivity series (The array of metals in the descending order of their reactivities is referred to as the metals' reactivity series. It is sometimes referred to as the metals in the activity series.)

Lithium and calcium ions are more reactive than aluminum ion and they are less electronegative.

Since silver and tin are more electronegative than aluminum so, they cannot oxidize aluminum.

∴ $Li^{+}$ and $Ca^{+2}$ ions can oxidize aluminum.

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