All categories

3 years ago

Which of these are ionic compounds? Check all that apply.

Chemistry

2 answers:

WARRIOR [948]3 years ago

6 0

$\text{NH}_4$ , KF and MgO are ionic compounds.

Further Explanation:

Covalent bond

The type of bond that includes the sharing of electron pairs between the constituent atoms in a compound is known as a covalent bond. The electron pairs are therefore called bonding or shared pairs.

Ionic bond

The force of interaction between a positively and a negatively charged species is termed as an ionic bond. These charged species are known as ions. Cations are the species formed when there occurs a loss of electrons by the neutral atom whereas anions result from the gain or addition of electrons to the uncharged atom.

Electronegativity difference $(\Delta\text{EN})$ is a key factor in predicting whether a bond is polar or nonpolar. If $\Delta\text{EN}$ is less than 0.4, the bond is a nonpolar covalent bond. If $\Delta\text{EN}$ is between 0.4 and 1.7, the bond is a polar covalent bond. If $\Delta\text{EN}$ comes out to be greater than 1.7, the bond is ionic.

$\text{NH}_4\text{Cl}$

In this molecule, the constituent particles are ${\text{NH}}_4^ +$ and $\text{Cl}^-$ ions. There is a formation of an ionic bond between the two and therefore $\text{NH}_4\text{Cl}$ is an ionic compound.

$\text{SO}_2$

Here, both the constituents are nonmetals so the compound is a covalent compound.

FCl

The electronegativity of fluorine is 4.0 while that of chlorine is 3.0 so their electronegativity difference in FCl comes out to be 1.0 and therefore this molecule is a polar covalent compound.

Here, K is an electropositive metal so it loses an electron that is gained by electronegative F atom, resulting in the formation of an ionic bond between the two. So KF is an ionic compound.

$\text{NH}_3$

Here, nitrogen and hydrogen are the constituent particles of the compound and both are nonmetals so $\text{NH}_3$ is a covalent compound.

MgO

Here, magnesium acts as metal and forms cation by the removal of an electron from it. Oxygen, being electronegative, accepts this electron and forms an anion. The interaction between $\text{mg}^{2+}$ and $\text{O}^{2-}$ ions is an ionic bond so MgO is an ionic compound.

Therefore $\text{NH}_4$ , KF and MgO are ionic compounds.

Learn more:

What is a typical characteristic of an ionic compound? brainly.com/question/6071838
What type of bond exists between phosphorus and chlorine? brainly.com/question/81715

Answer details:

Grade: High School

Chapter: Ionic and covalent compounds

Subject: Chemistry

Keywords: ionic bond, covalent bond, nitrogen, hydrogen, NH4Cl, MgO, KF, FCl, SO2, NH3.

SIZIF [17.4K]3 years ago

5 0

I think the correct answers from the choices listed above are the first, third and the last option. Ionic compounds are compounds that dissociates into ions when in aqueous solution. From the list, NH4Cl, KF and MgO are the ionic compounds. Hope this answers the question.

You might be interested in

PLEASE HELP!!!

NNADVOKAT [17]

When you are collecting DNA, you could be looking for a few different things. A few examples could be skin cells, strands of hair, or possibly even a fingernail. Anything that comes from a person, including blood or saliva can be potential DNA that could help investigators to link a person back to a crime.

Investigators do not need a warrant for analyzing crime scenes due to the fact of the dangers of the fire. You must work quickly because accelerants tend to evaporate within days, sometimes hours. It is also important to note that finding the origin of the fire is very important, to make sure it won't be reignited. Debris is usually cleaned away quickly to ensure health and safety issues.

The point of origin of a fire is the lowest point, since fire burns upwards.

High explosive: Ignite almost instantly, like dynamite and TNT. Two different types are primary and secondary.

<em>Primary: easily ignited, very sensitive to heat and friction. often used to ignite other explosives. </em>

<em>Secondary: much less sensitive to heat and friction, might be ignited using other explosive materials. TNT and dynamite are both secondary. </em>

Low explosive: decompose slowly and include black and smokeless powder. They are the most common type of explosives, and are readily available.

4 0

3 years ago

Why can an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a

ankoles [38]

An an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a chemical reaction because the number of molecules with sufficient energy to react increases. The answer is number 3.

3 0

3 years ago

Read 2 more answers

What is the name of SnF2

Inessa [10]

Answer:

Tin (II) Fluoride......

7 0

3 years ago

Which radioactive isotope would take the least amount of time to become stable? rubidium-91 iodine-131 cesium-135 uranium-238

Masteriza [31]

The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.

5 0

3 years ago

Read 2 more answers

Classify the four reactions that your group analyzed today as being either endothermic or exothermic

ArbitrLikvidat [17]

Chemical reactions are basically divided into two major classes depending on whether the reaction lose energy or gain energy from the environment during the course of the reaction. The two classes of reaction are exothermic and endothermic reaction.
An exothermic reaction is a type of reaction in which the reaction system lose energy to the environment and thus, the energy content of the reactants is more than that of the product formed. Because of this, the enthapyl change of an exothermic reaction is always negative.
An endothermic reaction is a type of reaction in which the reaction system absorb energy from the environment. Thus, the energy contents of the products is always higher than that of the reactants and the enthapyl change of the reaction is always positive. During the course of the reaction, the reaction container is usually cold to the touch because energy is been absorbed from the environment.

4 0

3 years ago