Are there any ionic compounds that contain only covalent bonds

Yes, a lot, for example: ammonium carbonate, do you say yes, quack, ammonium and carbonate are ionic bonds, and the carbon-oxygen bonds in carbonate are covalent bonds; Sodium hydroxide too, too much!

It won't exist. Because there must be ionic bonds in ionic compounds, if there are only covalent bonds, then they are not called ionic compounds. But there can be covalent bonds in ionic compounds, such as sodium hydroxide, sodium peroxide, etc.

Both ionic and covalent compounds involve the movement of electrons. Ionic compounds are compounds formed by ionic bonds, which are formed by the transfer of electrons (cations for those who lose electrons and anions for those who gain electrons). That is, the chemical bond formed between the positive and negative ions due to the electrostatic action.

Covalent compounds are compounds formed by covalent bonds composed of shared electrons, covalent bonds are a kind of chemical bonds, two or more atoms use their outer electrons together, and ideally reach a state of electron saturation, thus forming a relatively stable and strong chemical structure called covalent bonds. Unlike ionic bonds, atoms that enter the covalent bond do not show electrical properties outwards because they do not gain or lose electrons. The strength of the covalent bond is stronger than the hydrogen bond and is not much different from the ionic bond or even stronger than the ionic bond.

Common ionic compounds: NaCl, CSCL, Na2O2, NH4Cl base, and most salts! Not all acids, alkalis, salts.

No, because if only covalent bonds are contained. It is called a covalent compound.

Ionic compounds, the binding force is ionic bonds.

So it definitely contains ionic bonds.

Compounds with ionic bonds are called ionic compounds, and if they are all covalent bonds, they are not ionic compounds.

Substances that contain both ionic bonds and covalent bonds are ionic compounds.

There are four main categories:

1. Ammonium salts, such as NH Cl, NH NO, (NH4) CO, etc.

2. Strong alkalis, such as KOH, NAOH, etc.

3. "A certain acid", "a certain acid and hydrogen so", such as k so, nahco.

4. Peroxides, such as NaO, superoxides, such as KO.

An ionic bond is formed after becoming an ion by losing or gaining electrons from two or more atoms or chemical groups. There is an electrostatic effect between oppositely charged ions, and when two oppositely charged ions are close together, they appear to attract each other, and there is electrostatic repulsion between electrons and electrons, and between nuclei and nuclei.

When the electrostatic attraction and electrostatic repulsion reach equilibrium, ionic bonds are formed. Therefore, an ionic bond refers to a chemical bond formed by electrostatic interaction between anions, cations.

1. Ammonium salts, such as NH4Cl, NH4NO3, (NH4)2CO3, etc.;

2. Strong alkalis, such as KOH, NAOH, etc.

3. "A certain acid"."a certain acid hydrogen some", such as K2SO4, NaHCO3;

4. Peroxides, such as Na2O2, superoxides, such as Ko2.

Substances that contain both ionic bonds and covalent bonds are ionic compounds.

There are a few categories:

Ammonium salts, such as NH4Cl, NH4NO3, (NH4)2CO3, etc. Strong bases, such as KOH NAOH, etc.

A certain acid so-and-so","Hydrogen acid", such as K2SO4, NaHCO3 Peroxide, such as Na2O2, superoxide, such as Ko2.

Four categories: strong alkali, active metal peroxide, ammonium salt, active metal oxygenate.

Ammonium salts are salts of complex acids.

Hydroxide of active metal.

Sodium peroxide, sodium hydroxide, sodium sulfate, and many more.

There must be ionic bonds in ionic compounds, and there may also be covalent bonds, and there are only ionic bonds in ionic compounds composed of simple ions, such as: NaCl, NaO, etc. There are both ionic and covalent bonds in ionic compounds composed of complex ions (clusters of atoms), such as NH Cl, NaOH, etc.

Substances with both ionic and non-polar bonds, such as Na O, CAC, etc.

Ionic bonds are formed by the transfer of electrons (cations for those who lose electrons and anions for those who gain electrons). That is, the chemical bond formed between the positive and negative ions due to the electrostatic action.

Covalent compounds are compounds formed by covalent bonds composed of shared electrons, covalent bonds are a kind of chemical bonds, two or more atoms use their outer electrons together, ideally to reach a state of electron saturation, thus forming a relatively stable and strong chemical structure called covalent bonds.

Answer] :d Answer] d

This question examines the knowledge of the difference between the beam bond and the covalent bond.

Test Guidance】 NaOH has polar co-completion and valence bonds and ionic bonds, while NaCl and Na2O only contain ionic bonds, C2H2

contains only covalent bonds. Therefore, the ionic hand token containing covalent bonds is NaOH.

Ionic Bonds:

Definition: The electrostatic action that binds adjacent anions and cations into a compound.

Cause: Ionic bonds are formed by electron transfer (cations for those who lose electrons, anions for those who gain electrons). That is, the chemical bond formed between the positive and negative ions due to the electrostatic attraction. Ions can be single ions, such as Na+, K+; It can also be formed from clusters of atoms like Cl-, No3-, etc.

Substances that contain ionic bonds (required to be memorized in high school).

1 Salts formed by active metal cations and active non-metal anions.

For example, (kcl, csso4, kno3, na2s, etc.).

2 All ammonium salts.

For example, (NH4Cl, NH4SO4).

3 Low price metal oxides (note that it must be low price 1 or 2 price ).

For example, (na2o k2o cao).

4 Strong alkali (some weak alkali is not).

For example ( naoh koh ).

5 Peroxide, Superoxide, Calcium Carbide (CaC2, Calcium Carbide).

For example, (na2o2 cao2 ko2 bao4).

Note : Compounds containing ionic bonds must be ionic compounds !!

Covalent bond definition: The formation of a covalent bond is the pairing of electrons with opposite spin directions between two adjacent atoms, when the atomic orbitals overlap each other, and the density of the electron cloud between the two nuclei increases relatively, thereby increasing the gravitational attraction to the two nuclei. The covalent bond has a strong force and is saturated and directional.

Because only electrons with opposite spin directions can be paired to form bonds, covalent bonds are saturated; In addition, when atomic orbitals overlap each other, the symmetry condition and the maximum overlap condition must be satisfied, so the covalent bond is directional. Covalent bonds can be further divided into three types:

1) Non-polar covalent bond The electron cloud that forms a covalent bond is located right in the middle of the two atoms that are bonded, such as the c-c bond of diamond.

2) Polar covalent bond The electron cloud that forms a covalent bond is biased towards an atom with a greater attraction to the electron, such as a Pb—S bond, and the electron cloud is biased to the S side, which can be expressed as Pb S.

3) Valence bonds share electron pairs that are offered by only one atom alone. As in the Zn—S bond, the shared electron pairs are provided by zinc, (which does not have to be learned in this high school).

Covalent compounds :

1 Compounds formed between non-metals (except ammonium salts).

2 Minor salts (AlCl3 and FeCl3).

3 All acids.

Distinguish between ionic compounds and covalent compounds.

See if it is dissolved in water (or other solvents) and conducts electricity.

It's enough to remember these in high school.

Now I'll teach you how to tell the difference (the fastest way).

Generally at the high school level.

As long as the compound you see in the title contains the first main group of metals (alkali metals).

Then it must be an ionic bond.

As long as you see that the compound given in the title does not have metallic elements.

Then are the covalent bonds (except for ammonium salts).

Be sure to memorize the chemical formulas of the various ions.

From the definition of covalent compounds, only compounds that have all the bonds are covalent can be called covalent compounds, so it is impossible for covalent compounds to have ionic bonds.

When we say general, we do so that we do not rule out the possibility and make the conclusion more rigorous.

In fact, when solving the problem, it can be directly understood that the ionic bonds do not exist in the covalent compound, and if there is a special case, then the problem will inevitably give us information. (Our teachers like to discuss topics.)

The knowledge in the university tells us that ionic bonds and covalent bonds are originally artificially determined, hehe.

The definition of high school chemistry is that as long as it contains ionic bonds, it is an ionic compound, that is, a covalent compound does not contain ionic bonds. But when you go to university, you will know that such a definition is inaccurate, but you don't need to master it in middle school, and you will learn it in college chemistry.

This sentence is about logical rigor, because absolute things are not necessarily true.

Definition of ionic compound: As long as there is an ionic bond, it is an ionic compound.

No matter how many bonds there are, as long as one bond is an ionic bond is an ionic compound.

Therefore, in covalent compounds, there are no ionic bonds.

Ionic bonds are formed due to the gain and loss of electrons, whereas covalent bonds are formed by sharing electron pairs.

But if you understand them carefully, you will find that they are the relationship between quantitative and qualitative changes.

The greater the difference in electronegativity (i.e., the ability to attract electrons) between two atoms that are covalently bonded, the closer the shared electron pair is to the one with the stronger electron-withdrawing ability, and the farther away from the other.

If the difference reaches a certain level, the electrons are completely pulled over, and they become ionic bonds.