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Look at the electron-dot diagram for neon in the table above. Based on the table, explain why does neon have a very high ionization energy? Please use at least ONE complete content related sentence.

Answer:

1s², 2s², 2p⁴

Explanation:

Hello,

To determine the filling of electrons in an orbital, we'll have to apply several rules such as

1. Aufbau principle

2. Hunds rule

3. Pauli's exclusion principle.

I won't explain the above rules because I don't want to deviate from the question, but however if you understand them, it'll make questions like this easier to answer.

For oxygen atom

₈O = 1s² 2s² 2p⁴

The filling of the orbital must start with 1s orbital till the space of the two electrons are filled before moving to 2s orbital filling the two space in the shell and then finally the remaining 4 electrons on the 2p orbital.

Assuming the net ionic charge of oxygen in this case is zero (0) and has not accepted electron.

However, oxygen usually accepts 2e⁻(electrons) to attain stability (all orbital strive to attain duplet or octet configuration).

Assuming we have O²⁻, the electron configuration change to 1s² 2s² 2p⁶. This is the state oxygen usually forms compounds in excerpts with group 1 metals where it is able to form super oxide.

Answer:

9.48

Explanation:

pH=-log(H+)

pOH+pH=14

Answer:

9.48

Explanation:

Got it right on Odessyware ;) Have a Nice Day!!!!

Answer:

1) I dont knoe

2) Poetry

Explanation:

Answer: Symbolic language is used by an author to hint at deeper meanings.

Explanation: penn foster

Answer:

3 ohms

Explanation:

R=V / I

R=9V / 3 A

R=3 ohms

Answer:

Lightning is produced by the rapid transfer of free electrons when one of the following conditions exist:

One part of a cloud is positively charged and a neighboring part of the same cloud is negatively charged.

A positively charged cloud comes near a negatively charged cloud.

A cloud with either a positive charge or a negative charge comes near the earth.

Answer:

[tex]1.46x10^{23}molecules \ LiNO_3[/tex]

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

[tex]Li_2SO_4 + Pb(NO_3)_2 \rightarrow PbSO_4+2LiNO_3[/tex]

Thus, since lead (II) nitrate is in excess, we can directly compute the moles of lithium nitrate by applying the 1:2 molar ratio between them in the chemical reaction as well as the molar mass of Lithium Sulfate that is 110 g/mol for the stoichiometric shown below factor:

[tex]n_{LiNO_3}=13.3gLi_2SO_4*\frac{1molLi_2SO_4}{110gLi_2SO_4} *\frac{2molLiNO_3}{1molLi_2SO_4} =0.242molLiNO_3[/tex]

Finally, by using the Avogadro's number we are able to compute the molecules:

[tex]0.242molLiNO_3*\frac{6.022x10^{23}molecules\ LiNO_3}{1mol}=1.46x10^{23}molecules \ LiNO_3[/tex]

Best regards.

Complete question:

In the reaction between Lithium Sulfate and an excess of Lead (II) Nitrate, how many molecules of Lithium Nitrate can be expected as a product if 13.3 grams of Lithium Sulfate are used? Show your work.

Li₂SO4 + Pb(NO3)₂ = LiNO₃ + PbSO₄

Answer:

0.242 molecules of Lithium Nitrate

Explanation:

Given:

Li₂SO₄ + Pb(NO3)₂ =  LiNO₃ + PbSO₄

A balanced form of the equation:

Li₂SO₄ + Pb(NO3)₂ =  2LiNO₃ + PbSO₄

When  13.3 grams of Lithium Sulfate (Li₂SO4 ) are used, the number of molecules of Lithium Nitrate (LiNO₃) that can be expected as a product is calculated as;

molecular mass of  Li₂SO₄  = (7 x 2) + (32) + (16 x 4)

                                             = 14 + 32 + 64

                                             = 110 g

110 g of  Lithium Sulfate -----------> 2 molecules of Lithium Nitrate

13.3 g of  Lithium Sulfate ------------> ? molecules of Lithium Nitrate

= (2 x 13.3) / 110

= 0.242 molecules of Lithium Nitrate

Therefore, 13.3 grams of Lithium Sulfate will produce 0.242 molecules of Lithium Nitrate

Answer:

Explanation:

Each time energy is transferred into an object, two things happen.

It is either used to do work, or it is stored in the object.

If it is stored, the object is given potential energy that can be released to do work.

it is like in a coiled spring or a stretched elastic band. The energy is stored in the bonds between atoms. The bonds absorb energy as they are put under stress and release the energy as they relax (when the object returns to its original shape).

Answer:

0.193M.

Explanation:

Answer:

the correct answer is D.

Explanation:

Got it right on edg. 2020

The correct structure for [tex]CCl_{4}[/tex] will be " All the C l atoms have 3 pair of electron dots, on the three sides that do not have the bond."

A chemical bond would be a strong bond which could be formed among atoms, ions, as well as molecules to create chemical compounds.

Lewis dot structures, commonly known as electron dot structures, were schematics showing the interatomic chemical bonds in such a molecule.

The electron dot structure of [tex]CCl_{4}[/tex] is shown below:

It can be seen that each carbon attached by single bond.

The correct structure for [tex]CCl_{4}[/tex] will be " All the Cl atoms have 3 pair of electron dots, on the three sides that do not have the bond."

Therefore, the correct answer will be option (D).

To know more about electron dot structure.

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Answer:

Explanation:

please delete this it was a mistake

Answer:

4.77 × 10-7 meters

Explanation:

Energy of photon, E = hν  

Frequency of photon,

Thus, energy of photon,

Therefore, 4.165 × 10-19 joules =

λ =

λ =

λ  = 4.77 × 10-7 meters

The frequency of a photon having energy of 4.165 × 10-34 joules is 4.77 × 10-7 meters.

Answer:

Increase in CO2 (g) over time.

No NaHCO3 (s) will be left after a time

Explanation:

The reaction, shown below;

2NaHCO3(s) → Na2CO3(s)+CO2(g)+H2O(ℓ) is a decomposition reaction. A decomposition reaction is a kind of chemical reaction in which a given chemical specie breaks up to give other chemical species. Decomposition may be induced by heat or light.

Usually, there is only one reactant in a decomposition reaction; the specie that disintegrates into the products. This reactant usually decreases in concentration steadily because it is converted into products. This is why the mass of NaHCO3(s) in the system continues to decrease steadily until it finally falls to zero.

Conversely, the concentration (for aqueous) or volume (for gases) or mass (for solid) products of the reaction increases steadily as the reaction progresses. This explains why the volume of CO2 in the system will steadily increase over time.

Answer:

Energy cannot be created or destroyed.

Explanation:

According to the law of conservation of energy, energy can neither be created nor it can be destroyed. Energy can only be transformed from one matter to another. The conservation of energy remains constant in an isolated system. The law is applicable in the system that does not exchange energy in the environment. Energy changes its form but remains constant.

Answer:

Energy cannot be created or destroyed

Explanation:

It's A on Edge

THE OTHER PERSON IS WRONG TRUST ME

THE ANSWER IS C. I TOOK THE TEST MYSELF AND GOT A %100.

Answer:

NaF

Explanation:

I'm not exactly sure what you are asking for, but this is the formula for sodium fluroride.

We need the diagram to be able to help you with this, please take a screenshot of the diagram.

Answer:

In chemistry, pH (/piːˈeɪtʃ/) (abbr. power of hydrogen or potential for hydrogen) is a scale used to specify how acidic or basic a water-based solution is. Acidic solutions have a lower pH, while basic solutions have a higher pH.

Explanation:

that should answer ur question

Answer:

E=2

F=2

G=1

Explanation: this is the answer promise

Answer:

E=2

F=2

G=1

Explanation:

Answer:

Hi there!

The correct answer is: The bonds on salt are stronger than the bonds in sugar, because it would have required adding even more energy to break the bonds in salt.

Explanation:

Salt has ionic bonds, while sugar has covalent bonds.

Ionic bonds are stronger than covalent bonds, therefore it takes more energy to break.

Answer:

Metals on the right side and non metals on the left side.

The correct answer is; Non-metals/Metals

Metals are found at the left hand side of the periodic table while non metals are found at the right hand side of the periodic table.

The periodic table is an arrangement of elements in order of increasing atomic number according to the modern periodic law.

The elements in the periodic table are arranged in rows and columns. The rows are called periods while the columns are called groups.

Metals are found at the left hand side of the table while non metals are found at the right hand side of the table.

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Answer:

Option B. 4.5g

Explanation:

The balanced equation for the reaction is given below:

2Na + 2H2O —> 2NaOH + H2

Next, we shall determine the mass of Na and the mass of H2O that reacted and the mass of H2 produced from the balanced equation. This is illustrated below:

Molar mass of Na = 23g/mol

Mass of Na from the balanced equation = 2 x 23 = 46g

Molar mass of H2O = (2.02x1) + 16 = 18.02g/mol

Mass of H2O from the balanced equation = 2 x 18.02 = 36.04g

Molar mass of H2 = 2.02 x 1 = 2.02g/mol.

Mass of H2 from the balanced equation = 1 x 2.02 = 2.02g

From the balanced equation above,

46g of Na reacted with 36.04g of H2O to produce 2.02g of H2.

Next, we shall determine the limiting reactant. This is illustrated below:

From the balanced equation above,

46g of Na reacted with 36.04g of H2O.

Therefore, 120g of Na will react with = (120 x 36.04)/46 = 94.02g of H2O.

From the calculations made above, we can see that it will take a high mass of H2O i.e 94.02g than what was given i.e 80g to react completely with 120g of Na. Therefore, H2O is the limiting reactant and Na is the excess reactant.

Finally, we shall determine the mass of H2 produced from the reaction as follow:

The limiting reactant will be used in this case as it will give the maximum yield of H2 since all of it is used up in the reaction.

From the balanced equation above, 36.04g of H2O reacted to produce 2.02g of H2.

Therefore, 80g of H2O will react to produce = (80 x 2.02)/36.04 = 4.5g of H2.

Therefore, 4.5g of H2 is produced from the reaction.

Answer:

44,1 m

Explanation:

Ep= m * g * h

37485 = 85 * 10 * h

h = 44,1 m

Answer:

The answer is 45 on edge 2020

Explanation:

hope this helps :)

Explanation:

4=true

5. true

hope this helps. good luck with your test.

Answer:

I don't understand

Explanation:

Answer:

Molecules containing carbon—hetero double bonds like carbonyl (C=O) groups, or imine (C=N) groups, can undergo addition, as they too have double-bond character. An addition reaction is the reverse of an elimination reaction. For instance, the hydration of an alkene to an alcohol is reversed by dehydration.

hope that helps!

Answer:

The correct answer is C:

Kumho Tire Co. Ltd V. Daubert

Explanation:

In this case, the appellant (Daubert) has sued Kumho Tire Co. Ltd (the defendant) when 3 months prior the right rear tyre of his car exploded while the car was in motion killing a passenger and injuring others severely.

The appellant employed the services of an expert who had worked for 10 years with Michelin to give his opinion as having studied the attributes of the tire technology.  

In a counter-argument, the defendant rather than dispute the opinion of the expert urged the court to exclude it as evidence because his methodology didn't conform to the requirements of the Law as given in Rule 702 of the Federal Rules of Evidence.

True to the defendants' position, the Law by the ruling in Daubert v Merrell Dow Pharmaceuticals required that for the opinion to count, it had to be scientifically correct. It was hence excluded as evidence in the case.

Cheers!

Answer:

C. Because transition elements has 4 special chatacteristics

forms colored ions

has multiple oxidation numbers

forms complex ions

can act as catalyst

Answer:

The answer to your question is given below.

Explanation:

To prepare 50mL of 3M HCl, we must calculate the volume of the stock solution needed. This can obtained as follow:

Molarity of stock solution (M1) = 12M

Volume of stock solution needed (V1) =?

Molarity of diluted solution (M2) = 3M

Volume of diluted solution (V2) = 50mL

The volume of the stock solution needed can be obtained by using the dilution formula as shown below:

M1V1 = M2V2

12 x V1 = 3 x 50

Divide both side by 12

V1 = (3 x 50)/12

V1 = 12.5mL

The volume of the stock solution needed is 12.5mL

Therefore, to prepare 50mL of 3M HCl, we must measure 12.5mL of the stock solution i.e 12M HCl and then, add water to the mark in a 1L volumetric flask. Now we can measure out 50mL of the solution.

Answer:

14.6 g of barium phosphate

3.35 g of sodium metal

Explanation:

2Na3PO4(aq) + 3Ba(s) -------> Ba3(PO4)2(aq) + 6Na(s)

The first step in any such reaction is to but down the balanced reaction equation according to the stoichiometry of the reaction.

The two products formed are barium phosphate and sodium metal.

Number of moles of barium corresponding to 10.0g of barium = mass of barium/ molar mass of barium

Molar mass of barium = 137.327 g

Number of moles of barium = 10/137.327

Number of moles of barium = 0.0728 moles

For barium phosphate;

3 moles of barium yields 1 mole of barium phosphate

0.0728 moles yields 0.0728 moles × 1/3 = 0.0243 moles of barium phosphate

Molar mass of barium phosphate = 601.93 g/mol

Therefore mass of barium phosphate = 0.0243 moles × 601.93 g/mol = 14.6 g of barium phosphate

For sodium metal

3 moles of barium yields 6 moles of sodium metal

0.0728 moles of barium yields 0.0728 × 6 / 3 = 0.1456 moles of sodium

Molar mass of sodium metal= 23 gmol-1

Mass of sodium metal= 0.1456g × 23 gmol-1 = 3.35 g of sodium metal