explain the electrolysis of MgCl2 in aqueous solution

Answers

Answer 1

During electrolysis, a current is passed through the molten MgCl2, and when this happens, the Mg2+ ions move to the negative electrode where they PICK UP OR GAIN ELECTRONS. This is reduction. The Cl- ions move to the positive electrode where they LOSE ELECTRONS. This is oxidation.


Related Questions

Please help me with this
Beer Lambert Law Explanation

Answers

Answer:

The Beer–Lambert law, also known as Beer's law, the Lambert–Beer law, or the Beer–Lambert–Bouguer law relates the attenuation of light to the properties of the material through which the light is travelling.

Explanation:

Please Mark as brainliest

How many oxygen atoms
in a molecule of table sugar (C12H22011)?
ОА 45
ООО
В. 22
с 12
Op. 11
SUBMIT

Answers

11 oxygen atoms in a molecule of table sugar

Answer:

6.6242 x 10 ^ 24

Explanation:

This is the correct answer because you know there is 11 oxygen moles in 1 mole of sugar so using dimensional analysis you can solve it. You start will 11 moles of oxygen, and multiply by Avogadro's number(6.022 x 10 ^23) to get the amount of atoms. I don't see it as an answer, but I am confident in this, so I would ask your teacher specifically.

Hope this helps!

five (5) muscular injuries and disease​

Answers

Answer:

tendinitis.

carpal tunnel syndrome.

osteoarthritis.

rheumatoid arthritis (RA)

fibromyalgia.

bone fractures.

Me and the whole world

which two body systems are primarily responsible for locomotion

Answers

Locomotion and movement are brought about by skeletal and muscular system of the body. It’s a coordinated event of the skeletal and muscular system brought by contraction and relaxation of muscles.

How does locomotion occur in our body?

Locomotion occurs with help of specialised muscles, muscular and non-muscular by nature.

It involves the interaction of muscles (tendons and ligaments) and skeletal joints and cartilage

Locomotion is a voluntary action which require involvement of the nervous system.

In muscles actin and myosin protein forms cross bridges, consuming ATP.

Hence, to bring about locomotion skeletal and are responsible.

Learn more about locomotion.

https://brainly.com/question/13343069    

#SPJ2

What is the formula for this compound?
2 atoms of aluminum, 3 atoms of sulfur

Answers

Answer:

A

Explanation:

2 atoms of aluminum, 3 atoms of sulfur

Aluminum = Al

Sulfer = S

i just took the test

The formula for 2 atoms of Al and 3 atoms of S is Al₂S₃  and is named  Aluminium Sulphide.

How are the formulas of the compound formed?

Al has atomic no. =13, S has atomic no.=16

So the valencies of the given elements are

Al⁺³ and S⁻² to attain the noble gas configuration.

Al⁺³↘ ↙S⁻³

                  Al₂S₃

Cross multiply the valancies for the formation of molecular formula.

Hence, the formula is Al₂S₃.

Learn more about chemical formulas.

https://brainly.com/question/11995171  

#SPJ2

What is the difference between a conductor and an insulator?

Answers

A conductor is what helps heat or electricity pass through an object. Examples of conductors are, silver, iron, aluminum, etc..

An insulator does the opposite and instead, stops either from going through. Examples of an insulator is paper, wood, rubber, etc.

What is the one defining abiotic factor of a desert?

cold temperatures

high winds

little or no rainfall

high humidity

Answers

Hello! :p .

deserts are known to have little to no rain fall & drop to very low temperatures at night! I hope this helps!

Answer: little or no rainfall

Explanation: Precipitation, sunlight, and temperature are all abiotic factors.

Deserts have a lack of rainfall.

Some deserts are hot, some deserts can be cold too.

Abiotic factors are  extreme temperatures of the day and night  the fast winds  the strong amount of sunlight  scarcity of water

what is a tidal barrage
plase explaine

Answers

Answer:

A dam like structure used to capture energy from masses of water moving in or out of a bay of rivers due to tidal force is called tidal barrage.

Explanation:

It may help you to solve question.

1. While on a movie set, a stuntman jumps off
the roof of a building. As he falls toward an
airbag, what is increasing?
A. gravity
B. wind velocity
C. kinetic energy
D. potential energy

Answers

kinetic energy kkkkkkkkkk

The balanced equation shows how sodium chloride reacts with silver nitrate to form sodium nitrate and silver chloride. NaCl AgNO3 Right arrow. NaNO3 AgCl If 4. 00 g of NaCl react with 10. 00 g of AgNO3, what is the excess reactant? AgCl NaCl AgNO3 NaNO3.

Answers

The reactant that has been present in excess in the reaction has been NaCl. Thus, option B is correct.

The balanced chemical equation has been:

[tex]\rm NaCl\;+\;AgNO_3\;\rightarrow\;NaNO_3\;+\;3\;AgCl[/tex]

From the balanced equation, for complete utilization of 1 mole of sodium chloride, 1 mole of silver nitrate has been used.

The moles of can be given as:

[tex]\text Moles\;=\;\dfrac{m}{mwt}[/tex]

Where, mass of Silver nitrate, [tex]m=10\;\text g[/tex]

Molecular mass of silver nitrate, [tex]mwt=168\9.87\;\text {g/mol}[/tex]

Substituting the values, moles of silver nitrate has been:

[tex]\rm Moles \;AgNO_3=\dfrac{10}{169.87} \\Moles \;AgNO_3=0.058\;mol[/tex]

Mass of sodium chloride, [tex]m=4\;\text g[/tex]

Molecular mass of sodium chloride, [tex]mwt=58.44\;\text {g/mol}[/tex]

Substituting the values, moles of sodium chloride has been:

[tex]\rm Moles\;NaCl=\dfrac{4}{58.44}\\Moles\;NaCl=0.068\;mol[/tex]

From the balanced chemical equation,

[tex]\rm 1\;moles\;AgNO_3=1\;moles\;NaCl\\0.058\;mol\;AgNO_3=0.058\;mol\;NaCl[/tex]

Since, the available moles of NaCl has been 0.06 mol, and used NaCl has been 0.05 mol. Thus, NaCl has been the excess reactant.  Hence, option B is correct.

For more information about the excess reactant, refer to the link:

https://brainly.com/question/25685654

Answer:

B- NaCl

Explanation:

if this helped could you put this as the brainiest

For an electric toothbrush, is input energy equal to useful output energy? Explain
your answer.

Answers

No, input energy is not equal to useful output energy, if it is an electric toothbrush.

What is the useful type of energy produced in an electric toothbrush?

Electrical Energy is the useful type of energy produced in an electric toothbrush.

If input energy is equal to useful output energy. This means that the total amount of energy that is in an isolated system (such as an engine or a generator) remains constant (conserved) over time.

However, the total amount of useful energy output of an isolated system is never equal to the total energy input.

Learn more about the electric toothbrush here:

https://brainly.com/question/8318282

#SPJ1

Which of the following statements describes sound energy?
Sound energy does not travel at all.
Sound energy needs a medium to travel through.
Sound energy can travel in empty space.
Sound energy can only travel through air.

Answers

Answer:

C.

Explanation:

FOR THE LOVE OF GOD SOMEONE PLEASE HELP ME
WHAT IS THE OXIDATION NUMBER OF THE S IN SO^-2 ???

Answers

Answer:

The oxidation number for sulfur in SO2 is +4.

Explanation:

To find the oxidation number of sulfur, it is simply a matter of using the formula SO2 and writing the oxidation numbers as S = (x) and O2 = 2(-2) = -4. Using the rule and adding the oxidation numbers in the compound, the equation becomes x +(-4 ) = 0. Solving for x, it is evident that the oxidation number for sulfur is +4.

What are ocean currents?

Answers

Answer:

What are ocean currents?Ocean currents are continuous movements of water in the ocean that follow set paths, kind of like rivers in the ocean.

What mass of sugar and water is needed to make 40 g of 10% solution?​

Answers

Answer

16g

Percent by mass=  mass of solute/mass of solution * 100

Explanation: work out the equation

A penny is 0.061 inches thick. What is the value of the 6 in the thickness of a penny? Mathematics not chemistry

Answers

Answer:

because of the location of the 6 the answer is 6 cent

Answer:

Hundredths

Explanation:

$6 times 1/$100. The 0 is tenths, the 6 is hundredths and the 1 is thousandths.

After moving down a group in the periodic table, the number of valence electrons

Answers

the number of Valence electrons remains the same

The Lewis dot model of an atom has seven dots. Which of the following is true about the atom?

A) it has seven energy levels.
B) it has one valance shell electron.
C) it requires one electron to complete it’s octet.
D) it requires seven other atoms to form a stable compound.

Answers

It requires one electron to complete its octet

The Lewis dot model of an atom has seven dots. The statement true about atom is,

It requires one electron to complete it’s octet.

So, option C is correct one.

What is Lewis dot model?The simple representation of the valence shell electrons in a molecule.The Lewis structure is also known as Lewis dot formula, electron dot structure, Lewis dot structure, Lewis electron dot structure.It is used to show the arrangement of electrons around individual atoms in the molecule. In this representation valence electrons of atom is shows as dot or bonding electrons as a line between two atoms.

What is valence electrons?

The electron/electrons present in valence shell is called valence electrons. Each atoms require eight electrons to complete their octet or valence shell.

To learn more about Lewis dot model here.

https://brainly.com/question/17735032

#SPJ2

A Herbig-Haro (HH) object is:_:_________.
a. a small galaxy just outside the outer edge of the Milky Way
b. where a jet from a star in the process of being born collides with (and lights up) a nearby cloud of interstellar matter
c. a part of a giant molecular cloud where molecules containing two hydrogen atoms form
d. a star that has too little mass to start fusion in its core
e. cluster of very low-mass stars, observable only with infrared radiation

Answers

Given what we know about Herbig-Haro (HH) objects, we can confirm that they are born from the collision between a jet from a star and clouds of interstellar matter.

What are Herbig-Haro (HH) objects?To put it simply, a Herbig-Haro (HH) object is what we observe as a bright spot in distant space. Upon closer observation we can observe that these giant bright patches are not lone objects, but in fact immense groups of interstellar matter.

How Herbig-Haro (HH) objects are formed.The formation of one of these interstellar groups requires an immense amount of energy. This energy come from the speed at which the materials that form these objects collide.As stated in the question, the jet released from a star in the process of being born smashes into a giant cloud of dust and interstellar material to form the Herbig-Haro (HH) objects. This collision happens at hundreds of km/s. To put it into perspective, it would be roughly 500,000 miles per hour.

Therefore, we can confirm that option b, which states, "where a jet from a star in the process of being born collides with (and lights up) a nearby cloud of interstellar matter", is the correct choice for the question pertaining to Herbig-Haro (HH) objects.

To learn more about interstellar space visit:

https://brainly.com/question/7106246

What is the minimum uncertainty in a simultaneous measurement of the y-component of the proton's velocity?.

Answers

Answer: c

Explanation:

The last layer in layered design is _____________. Object Process None of the options Atoms Sub process

Answers

The last layer in the layered design is system layer so none of the above is the correct option.

Robotic Process Automation is a software technology that make use of some programs of computer to copy or mimic the behaviors of human when it has access with them. They been use effectively and ensure the work is perfectly done.

There are layers in the Robotic process automation but the last layer is System layer.

They can handle high volume of tasks.

The lowermost layer is associated with individual screen interactions. The lowermost layer in the layered design of Robotic process automation is the component layer or system layer . The Robotic Process Automation and this form technology is in robots creation.

Therefore, The last layer in layered design Is System layer so none of the above is the correct option.

Learn more about Robotic process automation from the link below.

https://brainly.com/question/41671370

What is the frequency of 14000 X ray photons having an energy of 5.27*10-5 J/Hz

Answers

The frequency of the X - ray is [tex]7.95 \times 10^{28} \ Hz[/tex].

The given parameters:

Energy of the X-ray, E = 5.27 x 10⁻⁵ J

The frequency of the wave is calculated as follows;

[tex]E = hf\\\\f = \frac{E}{h} \\\\[/tex]

where;

h is Planck's constant = 6.626 x 10⁻³⁴ J/Hz

Substitute the given parameters;

[tex]f = \frac{E}{h} \\\\f = \frac{5.27 \times 10^{-5} }{6.626 \times 10^{-34}} \\\\f = 7.95 \times 10^{28} \ Hz[/tex]

Thus, the frequency of the X - ray is [tex]7.95 \times 10^{28} \ Hz[/tex].

Learn more about frequency of radiation here: https://brainly.com/question/13400312

Explain what happens during soil depletion and also how we can help prevent this naturally without chemicals?
PLZ FAST TYY <3

Answers

Answer:  create more healthy products for the soil and animals

Explanation:

HURRY I HAVE 20 MIN LEFT will mark brainllest When. Coach Kwan notices that a player is getting tired, she takes out the tired player and substitutes a fresh player. Which type of chemical reaction does this best model?


replacement

decomposition

synthesis

oxidation

Answers

Answer A- Replacement. The player was tired so they replaced them with another to give them a break

Which of the following could be classified as producing a physical change?
A. Burning a candle
B. Leaving a bicycle outside to rust
C. Bending sheet metal
D. Toasting a slice of bread

Answers

D which is Toasting a slice of bread

Answer:

C.  Bending sheet metal.

Explanation:

The metal is still intact.  No change in chemical bonds have occurred.

Burning a candle is converting wax into heat, CO2 and carbon soot.

A rusting bicycle is converting goof iron, Fe, into iron oxide (rust, Fe2O3)

Toasting bread is more difficult to define.  If the bread is just warmed, then it is physical.  If it is toasted (browned/burned), then a few surface molecules have been converted into tasty carcinogens, my favorite poison.

What does the answer of element 3Na2S2O3?

Answers

Answer:

Explanation:

3× 22+2×32+ 6×16=

66+64+96=236

two samples of solids have similar reactivity with acids and similar densities. their masses and volumes, however, are not at all similar. is it possible that these are the same substance?

Answers

Given that the volume and mass of a substance are not defining properties, it is entirely possible for two samples with different volumes and mass to be the same substance.

What are defining properties of a substance?These are properties that can help us to identify a substance. The most useful of which tend to be chemical properties such as reactiveness or melting points. Colors and density can also offer the insight needed to identify elements and substances. Mass and volume are not properties of a substance given that they can change often depending on the sample size and thus do not help to identify a substance.

Therefore, since the volume and mass of a substance are not defining properties of a substance, we can confirm that it is entirely possible for two samples with different volumes and mass to be the same substance.

To learn more about properties of elements visit:

https://brainly.com/question/11838894?referrer=searchResults

What is the relationship between plants soil and fertilizers?

Answers

answer: “ They add organic matter contributing to soil health increasing both the water-holding capacity and cation exchange capacity. They stimulate microbial activity and improve soil structure. Organic fertilizers also are valuable sources of micronutrients to plants. “ (the person above is correct)

20 PIONTS PLZ HELP
What mass of calcium chloride is needed to make 330.0 mL of 0.125 M
solution?

Answers

Answer:

4.58g

Explanation:

1.) What is the molar mass of CaCI2?

= 110.98 g/mol

2.) Find the mols

[tex]conc = \frac{mol}{volume(l)} [/tex]

conc × volume= mol

0.125 M x 0.33 L = 0.04125mol ( 330mL was converted to "L" by dividing 330 by 1000)

3.) The mass(g)

g= mol x atomic weight

g= 110.98g/mol × 0.04125

= 4.58 g

# NOTE M = mol/L

What is pseudoscience and how is it different from science

Answers

Answer:

a difference in attitude

Explanation:

It's just not science. ... The big difference Popper identifies between science and pseudo-science is a difference in attitude. While a pseudo-science is set up to look for evidence that supports its claims, Popper says, a science is set up to challenge its claims and look for evidence that might prove it false.

Other Questions
What is a compound sentence for the word urbane? Solve for x if log(2x-7) = 0 whats chemical formula ammonium iodide? Why did Stink swat Judy's sandwich out of her hand at the picnic? John is selling sets of knives and makes a 10% commission on all sales. What would his commission be on the sale of a $3250 set of knives? Sally has 243.75 pieces of candy. John has 27.4 pieces of candy. How many pieces of candy do they have in all? John thinks altogether there are 217.15 pieces of candy. Is he correct? Explain your thinking. 1.3 days=______hrs.2.2400 mm=_______meter3.1 hr and 20 min.=______seconds4.100 kilograms=______grams5.104 C =_______F 4. Diagram A represents the area enclosed by a shopping mall.Diagram AB6 inchesWhat is the length of side AC of the actual mall, in feet?A8 inchesAnswer:feetScale: 1 inch = 300 feet Answer the following question attached!! Choose the correct answer: It ( makes sense - does sense - makes meaning - makes understanding ) to save money while you can. Superhero DNA1. What determines a persons super hero ability?2. If the DNA sequence were to change, what would this be called?3. What are proteins and what do they code for?*just for an assignment* Maths Question: Transformations What was the number one reason cities began to grow so rapidly during the 1800s?No links! The distance between adjacent nodes in a standing wave pattern is 25.0 cm. What is thewavelength? If the frequency is 200. Hz, what is the speed of the wave? BRAINLIEST NO LINKSAllen is showing his work in simplifying 8.3 + 9.2 4.4 + 3.7. Identify any errors in his work or in his reasoning.Step Work Reasoning8.3 + 9.2 4.4 + 3.7 Original problem1 8.3 + 9.2 + 4.4 + 3.7 Additive inverse2 8.3 + 4.4 + 9.2 + 3.7 Commutative property3 8.3 + (4.4 + 9.2 + 3.7) Associative property4 8.3 + 17.3 Simplify5 9 SimplifyA: He did not make any errors.B: Step 1: He wrote 4.4 incorrectly as + 4.4.C: Step 2: He identified changing the order of the numbers as the commutative property, which is incorrect.D: Step 3: He identified changing the grouping of the numbers as the associative property, which is incorrect. : Discuss how a Medical Assistant could assist the patient who is complaining of chest pain while getting an EKG ordered by the physician to be done before the patient is fully examined. Can someone please help me with this easy math problem? Determine the center of the ellipse whose equation is. What problem did Roosevelt say the Social Security Act would solve? the lack of jobs for older Americans job retraining for disabled people economic insecurity for people who could no longer work industrialization. What are the side effects of healthcare? (What are the cons of healthcare?)