Which Elements Form An Ionic Compound? Check All The Boxes That Apply. Aluminum And Oxygen Calcium And (2023)

Chemistry Middle School


Answer 1

Answer: Ionic compound is formed by the elements

1) aluminium and oxygen

2) lithium and fluorine

Explanation: Ionic compounds are defined as the compounds in which there is complete transfer of electrons from one element ( a metal) to another element ( a non-metal).

From the given elements, two pairs will result in the formation of ionic compounds.

1) Aluminium and oxygen

In this Aluminium is a metal having +3 oxidation state and oxygen is a non metal having -2 oxidation state. This results in the formation of an ionic compound. The compound formed is

2) Lithium and fluorine

In this, Lithium is a metal having +1 oxidation state and Fluorine is a non-metal having -1 oxidation state which results in the formation of an ionic compound having formula LiF.

One of the rest pair of elements form covalent bond which is oxygen and fluorine. These two elements are non- metals and will result in the formation of covalent bond only. Covalent bond is the sharing of electrons between two elements. The covalent compound formed from these twp elements is

The final pair which is calcium and aluminium will not result in the formation of any compound because both the elements are metals and have positive charge on them, so both the elements will repel each other.

Answer 2

To form ionic compound Metal should react with Non-metal.
aluminum (metal) and oxygen(non-metal)
calcium(metal) and aluminum (metal)
fluorine(non-metal) and oxygen(non-metal)
lithium(metal) and fluorine(non-metal)
So we have 2 choices that give us ionic compounds:
1) aluminum and oxygen
4) lithium and fluorine

Related Questions

What is the molarity of a solution containing 7.0 moles of solute in 569 mL of solution??


First, we want to convert 569 mL to L:

569 mL (L/1000 mL) =.569 L

Now, we can divide to find molarity:

7.0 mol/.569 L =12 M

(3 Points) Which statement correctly compares radio waves and microwaves?

A. Radio waves have a higher frequency than microwaves.

B. Radio waves have shorter wavelengths than microwaves.

C. Radio waves have lower radiant energy than microwaves.

D. Only radio waves are used in communication.


Answer:The correct answer is option C.


Radio waves and microwaves both are the examples of electromagnetic waves.

Radio waves: These are waves with lowest frequency in the electromagnetic spectrum with longest wavelength.

Microwaves : These are the second lowest frequency waves in the electromagnetic spectrum with wavelength shorter than radio waves.

E = Energy of an electromagnetic wave

= Frequency of the electromagnetic wave

= Wavelength of the electromagnetic wave

Radio waves with longest wavelength has lower radiant energy than the microwaves.Hence, correct option is C.

Your answer is B. radio waves have shorter wavelenghts than microwaves.
Have a great day

(3 points) What increases the ability to see at night?

A. An increased number of rod cells

B. More cone than rod cells

C. An increased number of cone cells

D. An annual number of cone and rod cells

In what order are the following components used to create hydroelectric power? 1.reservoir-penstock-turbine-transformer-generator-electrical lines

2.reservoir-penstock-turbine-generator-transformer-electrical lines

3.penstock-turbine-transformer-generator-reservoir-electrical lines

4.penstock-turbine-transformer-generator-electrical lines-reservoir


Answer:The correct answer is option 2.


1. The water from the reservoir enter the pen-stock which guides the water towards the turbines.

2. The the water flowing down rotates the turbine which is further connected to generator in which electricity is generated.

3. The electricity generated by the generator is routed to wards the transformer which further distributes the electricity in different electrical lines.

The order of generations of hydroelectricity from the water is:

Reservoir→Penstock→Turbine-→Generator-→Transformer-→Electrical lines

The answer to this question is most- likely option 2

Hope I helped

Adolfo drank some red punch and grimaced at the flavor. His little brother had made the pitcher of punch with too much sugar. What allowed Adolfo’s brain to register the extra-sugary flavor of the punch? A. smelling the scent of the punch
B. transduction occurring from the taste buds
C. the chemical process of saliva interacting with sugar molecules
D. anticipating the flavor of a non-sugary drink


I believe that the saliva interacting with sugar molecules is what allowed Adolfo’s brain to register the extra-sugary flavor of the punch

PLS HELP!!! A piece of copper at 10 °C is dropped into a glass of water at 35 °C. Which statement is correct?
A) Heat will flow from the copper to the water in the glass until both reach the same temperature.
B) Heat will flow from the water in the glass to the copper until both reach the same temperature.
C) The final temperature of the water in the glass and the copper will be 10 °C.
The final temperature of the water in the glass and the copper will be 35 °C.
D) The final temperature of the water in the glass and the copper will be 35 °C.



Heat will flow from the water in the glass to the copper until both reach the same temperature.


If we consider a perfectly thermal insulation in the system with glass of water at higher temperature and piece of copper at lower temperature, then when the both come in contact with each other water will lose some heat and copper will gain that heat from water. The process will continue untill both reach the same temperature. One they will reach to same temperature we will not observe any heat change or temperature change between the two.

Heat change is a function of temperature difference.

The answer is B) heat will flow from the water to the copper until they both reach the same temperature

Onic bonds are formed between metal and nonmetal elements. Potassium has only one valence electron and it is stripped away in the process of forming an ionic bond. Nonmetals, such as chlorine, tend to gain valence electrons in the formation of ionic bonds. Determine which element(s) are likely to have their electrons stripped away in the formation of ionic bonds.

I) aluminum
II) sulfur
III) oxygen
IV) silver
V) neon


The elements that would have electrons stripped away are those that have a positive charge. (Aluminum and silver)


Aluminum and silver


Solutions which can conduct electricity must contain: atoms molecules minerals ions


Solutions which can conduct electricity must contain: IONS!

Ions is the correct answer

What is gravity?????????


A strong, invisible force called gravity pulls everything on Earth down. Gravity keeps you and all the things that are around you from floating up into the sky. An example of gravity in action is when you jump from the ground. Gravity is the force that pulls you back down.

Gravity is a force that can used draws everywhere, or everything to the Earth's center.

Hope it helped you.



Charles Darwin developed a theory about: deep sea life
coral reef formation
winds and currents
ocean floor sedimentation


The answer is Coral Reef Formation.Charles Darwin developed a theory about Coral Reef Formation. Hecontributed to marine biology through study of coral reef formation.Darwin's theory statesthat coral reefs formed as the islands and surrounding areas of crust subsided has been supported by modern investigations.


The correct answer is "coral reef formation".


Darwin is known worldwide for his theory of evolution. But he also proposed a theory of how isolated coral reef rings were formed. He deduced that they originally grew around extinct volcanoes, which then sank under the sea, leaving the reef as an isolated circle corresponding to the opening it had.

Have a nice day!

Atomic theory is A.subject to change if new information is discovered.
B.a solution to the problem of differing isotopes.
D.a descriptive table that lists all of the elements.


Atomic theory is the scientific inquiry of the nature of matter, which is subject to change as new information is discovered. The answer is A.

It isn't possible to transfer heat from an object at a lower temperature to another object at a _ temperature unless work is done


Heat transfers from high to low. So to complete the statement;

It isn't possible to transfer heat from an object at a lower temperature to another object at a HIGHER temperature unless work is done

Higher. Because this type of heat transfer is conduction, meaning that heat always transfers to cooler objects.

What device increases voltage? a. generator b. motor c. step-down transformer d. step-up transformer


The answer is step-up transformer. D

the answer is step-up transformer. D

The standard for entropy is defined by a perfectly ordered _____ at 0 k. A. Molecule
B. Crystal
C. Metal
D. Compound


B. Crystal


The answer is c. Metal

Please help quickly! Real answers only! How does the electromagnetic spectrum benefit the study of science?

The color of light waves can be changed using the model

It helps create new colors of light in visible spectrum

It helps compare applications of electromagnetic waves

The wavelength of light waves can be changed using the model


It helps compare the application of electromagnetic wavelength

Which of the following is an example of anaerobic respiration? Plant roots respiring in soil
Respiring while swimming underwater
Oxygen diffusing into a plant cell through stomata
Breaking down of glucose with oxygen inside an animal cell


Your answer is D have a good day




think about it its d i did the test and the answer was right!

What mass, in grams, of chlorine gas (Cl2) is contained in a 12.5-liter tank at 27.0 degrees Celsius and 2.85 atmospheres? Show all of the work used to solve this problem.


Answer: 101.367 grams of chlorine gas.


Pressure of the chlorine gas =P = 2.85 atm

Volume occupied by the gas = 12.5 L

Temperature of the gas = 27°C= 300 K (0°C = 273 K)

Number of moles of chlorine gas = n

PV = nRT

n = 1.4481 moles

Mass of the chlorine gas : 1.4481 moles × 70 g/mol = 101.367 g

101.367 grams of chlorine gas.

PV = nRT
P is pressure, V is volume, n is number of moles, R is the gas constant, T is temperature in K

(2.85 atm)(12.5 L) = (n)(.08206)(27 C + 273)

n = 1.45 moles x 35.45 grams / mol Cl2 = 51.3 grams

Which term is used to describe a molecule that has a partial positive charge at one end and a partial negative charge at the other end? nonpolar


This molecule isdipole meaning "two directions." There is both a positive and negative end.

PLEASE HELPPP MEEEE An unknown substance is cooled from 25 °C to 10 °C. The table below shows the state of the substance at different temperatures.
Time (minutes) Temperature (degrees Celsius) State of matter 0 25 Liquid 2 23 Liquid 4 18 6 18 8 18 10 15 Solid 12 10 Solid

Which statement is correct about the unknown substance?
Its freezing point is 23 °C.
Its freezing point is 18 °C.
The substance sublimes at 23 °C.
The substance exists as a gas at 18 °C.


Answer: Option (b) is the correct answer.


Freezing point is defined as the point at which liquid state of a substance changes into solid state.

So, in the given table it is shown that at temperature the substance is changing into solid state. Whereas at the substance is in liquid state.

Hence, will be the freezing point of the substance.

Thus, we can conclude that the statement its freezing point is , is correct about the unknown substance.

The second statment is true and right. Hope this helps!!

An atom of element A has 89 protons. What would the element's atomic number be?


The atomic number is the number of protons in the nucleus of an atom so the element has an atomic number of 89

I hope this helped :)

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