which of the following is the highest energy conformation of the following compound looking down the indicated bond?

Answer:

1s22s22p6

Explanation:

Neon is an element in the periodic table and has an atomic number of 10, which means it has 10 protons in its nucleus and thus since the number of protons and electrons is the same then it has 10 electrons.

Therefore, it has 2 electrons in the first energy shell and 8 electrons in the second energy shell. To elaborate further, the first shell has a single s-sub shell that contains a single s-orbital that can hold two electrons. The second energy shell has a single s-sub-shell whose s-orbital will occupy 2 electrons, and also has a p-orbital which can hold 6 electrons, making the second shell to have 8 electrons.

4) Ne

Chemistry

Atomic Structure

The most stable (unreactive) elements are found in group 18. They are known as the Noble Gases.

Noble Gases are inert, meaning they do not react easily with other elements. The reason is because their valence electron shells are filled.

Therefore, our best answer is 4) Ne.

Answer:

\(\boxed {\boxed {\sf 4. \ Ne }}\)

Explanation:

On the Periodic Table, the last group of elements are the Noble Gases. These are the most unreactive or stable elements.

According to the Octet Rule, atoms always want to have 8 valence electrons. The Noble Gases already satisfy this rule and have full outer shells, therefore they don't react with other elements often.

The Noble Gases are helium (He) , neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

The only answer choice that is a Noble Gas is 4. Ne

In scientific notation (m/s), the neutrino's speed is given as: 2.99338 109 m/s.

Scientific notation is a method of writing or displaying real numbers in the form of a decimal number ranging from one and 10 followed by an integer power of ten.

A decimal number in scientific notation is one that is followed immediately by E and an integer.

Experiments at the ICARUS particle accelerator discovered neutrinos traveling at nearly light speed, at 299338000 m/s.

Thus, as a result, the neutrino's speed in scientific notation (m/s) is given as: 2.99338 109 m/s.

For more details regarding scientific notation, visit:

https://brainly.com/question/18073768

#SPJ1

6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.

Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.

Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:

(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))

The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:

(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol

Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.

Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.

For more such questions on MgCl₂ visit:

https://brainly.com/question/26311875

#SPJ8

Explanation:

hope it helps you

Answer:

See Below

Explanation:

These are basic conversion factors.

1 atm = 760 mmhg

1 kilopascal = 7.50062 mmhg

Solving

0.989 * 760= ~751.64 mmhg

121.4 * 7.50062= ~910.57 mmhg

Hope this helps!

Answer:  Two cold air masses surround a warm air mass during a warm front, but a cold air mass moves against a warm air mass during an occluded front.

The grams of iburofen does such a tablet contain 800 mg =   0.8g Ibuprofen

1 g = 10^-3g = .001g

Ibuprofen has  800 mg doses in over-the-counter analgesic

800g = 800 × .001

        = 0.8g

To know more about analgesic visit :

https://brainly.com/question/2189504

#SPJ9

Answer:

You need 85.32 grams of KMnO₄ to produce 0.27 moles of O2, assuming 100% conversion.

Explanation:

The balanced chemical reaction is:

2 KMnO₄ (s) → K₂MnO₄ (s) + MnO₂ (s) + O₂ (g)

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles participate in the reaction:

Then you can apply the following rule of three: if by stoichiometry 1 mole of O₂ is produced by 2 moles of KMnO₄, 0.27 moles of O₂ are produced by how many moles of KMnO₄?

\(moles of KMnO_{4} =\frac{0.27 moles of O_{2} *2moles of KMnO_{4} }{1mole of O_{2} }\)

moles of KMnO₄= 0.54

The molar mass of KMnO₄ is 158 \(\frac{g}{mol}\).

Then the amount of mass present in 0.54 moles of the compound can be calculated by:

0.54 moles* 158.034 \(\frac{g}{mol}\)= 85.32 grams

You need 85.32 grams of KMnO₄ to produce 0.27 moles of O2, assuming 100% conversion.

Answer:

False

Explanation:

There is a water cycle wherever there is water. If it is cold, the water cycle will just be very slow.

Answer:

Round to the number of significant figures in the original question. However, if you're going to proceed with further calculations using this mass, it's best not to round, as rounding will cause your answer to be less precise.

Explanation:

Answer:

the European countries grew together.

Explanation:

Europe saw human inflows from east and southeast.

the Roman Empire came to dominate the entire Mediterranean basin.

European politics from 1947 to 1989 made the European countries grew together.

Answer: The final concentration of aluminum cation is 0.335 M.

Explanation:

Given: \(V_{1}\) = 47.8 mL (1 mL = 0.001 L) = 0.0478 L

\(M_{1}\) = 0.321 M,       \(V_{2}\) = 21.8 mL = 0.0218 L,      \(M_{2}\) = 0.366 M

As concentration of a substance is the moles of solute divided by volume of solution.

Hence, concentration of aluminum cation is calculated as follows.

\([Al^{3+}] = \frac{M_{1}V_{1} + M_{2}V_{2}}{V_{1} + V_{2}}\)

Substitute the values into above formula as follows.

\([Al^{3+}] = \frac{M_{1}V_{1} + M_{2}V_{2}}{V_{1} + V_{2}}\\= \frac{0.321 M \times 0.0478 L + 0.366 M \times 0.0218 L}{0.0478 L + 0.0218 L}\\= \frac{0.0153438 + 0.0079788}{0.0696}\\= 0.335 M\)

Thus, we can conclude that the final concentration of aluminum cation is 0.335 M.

The resulting solution will be neutral having a pH of 7.

The term pH is defined as the hydrogen ion concentration in solution. We know that the pH is inversely related to the hydrogen ion concentration in solution.

We know that the reaction between an acid and a base produced a salt. In this case, the salt that is produced is neutral because the acid is completely reacted with the base.

Since the solution contains a mixture of a  containing pH of 3.5 and that of a pH of 10.5, the resulting solution will be neutral having a pH of 7.

Learn more about pH:https://brainly.com/question/15289741

#SPJ1

Answer:

It has 17 protons, 17 electrons, and 18 neutrons/ 35 protons, 35 electrons, and 17 neutrons. 21. Phosphorus-33 (atomic number 15) contains 18 neutrons/ 18 protons

Answer:

global warming and destruction of the ozone layer

Explanation:

if Carbon dioxide are high in number , it will cause destruction of the ozone layer which will result to global warming

Answer:

4:6

Explanation:

Teaching, working at the restaurant, online work and freelancing are the work that make money.

In real life, we can get money by doing teaching in the school or academy, working at the restaurant or any other public places. Freelancing and online teaching are the best jobs for making good money. Doing small business able you to make good money in a short period of time. Make deliveries on Amazon and start your own business. So there are a lot of jobs for making money and better your financial condition.

So we can conclude that teaching, working at the restaurant, online work and freelancing are the work that make money.

Learn more about money here: https://brainly.com/question/24373500

#SPJ1

The number of mole of H₂O₂ that were composed by the catalyst (10 mL of potassium iodine) is 0.0396 mole

From the question given above, the following data were obtained

Molarity and number of mole of as substance are related according to the following equation

Molarity = number of mole / Volume

Inputting the given parameters, the number of mole H₂O₂ solution can be obtain as shown below:

0.7959 = number of mole of H₂O₂ solution / 0.0498

Cross multiply

Number of mole of H₂O₂ solution = 0.7959 × 0.0498

Number of mole of H₂O₂ solution = 0.0396 mole

Thus, the number of moles of H₂O₂ solution composed is 0.0396 mole

Learn more about number of mole:

https://brainly.com/question/20522500

#SPJ1

If the efficiency of a machine increases, it means that the machine is able to convert a higher percentage of its input energy into useful work output.

This could happen due to various factors, such as reducing friction, improving the design of the machine, or using more efficient components. The machine requires less energy input to perform the same amount of work. This could result in cost savings, reduced energy consumption, and lower environmental impact.

The output of the machine increases while the input remains constant. This could result in increased productivity, faster production rates, and improved performance. The wear and tear on the machine may decrease, as it is working more efficiently and experiencing less stress. This could result in longer machine life and reduced maintenance costs. Increasing the efficiency of a machine can have many positive effects, including cost savings, improved performance, and reduced environmental impact.

The complete question is

If the efficiency of a machine increases, what happen?

To know more about the Machine, here

https://brainly.com/question/25143359

#SPJ4

The correct answer is solution B!

the concepts of mole and chemical reactions, the element of the three compounds can be found.

compound 1     carbon - Nitrogen    CN

compound 2    carbon - Oxygen     CO

compound 3    carbon - Sulfur         CS

Chemical reactions are expressed in moles of each constituent element. The mole is one of the fundamental quantities of physics and is defined as the amount of matter in 0. 012 kg of carbon 12, in practical form the moles of a given element in a chemical reaction is found with the expression

            n = m / Pm

where n is the number of moles, m the mass of the element and PM the molecular weight (taken from the periodic table) of the element.

Let's apply to our compounds as the chemical formula is CX, there is an atom of each element, let's look for the moles of carbon.

compound 1

mass of coal 4.2

carbon mole

             n_C = 4.2 / 12

             n_C = 0.35 mol

as in the chemical reaction there is an atom of each element, there are also 0.35 moles of the unknown element, let's find its molecular weight (PM)

            PM = m / n

            PM = 4.9 / 0.35

            PM = 14 gr / mol

When reviewing the periodic table this weight corresponds to Nitrogen(N)  

The elect is Nitrogen

compound 2

carbon mass 3.5

carbon moles

            n_C = 3.5 / 12

            n_C = 0.29167

moles of unknown element n = 0.29167

mass of unknown element m = 4.67

molecular weight

          PM = 4.67 / 0.29167

          PM = 16 gr / mol

Checking the periodic table corresponds to the element Oxygen (O)

Compound 3

carbon mass 1.3

carbon moles

             n_C = 1.3 / 12

             n_C = 0.1083

moles unknown element n = 0.10833

mass unknown element m = 3.47

            PM = 3.47 / 0.10833

            PM = 32 gr / mol

In the periodic table the element Sulfur (S) has this molecular weight

Using the concepts of mole and chemical reactions, the elements of the three compounds can be found.

compound 1          carbon - Nitrogen      CN

compound 2         carbon - Oxygen       CO

compound 3         carbon - Sulfur           CS

learn more about chemical reactions and mole here: brainly.com/question/14918587

Answer:

Composition: All hydrocarbons are made up of only two types of atoms: carbon and hydrogen. They are like building blocks that contain carbon and hydrogen stuck together.

Organic Nature: Hydrocarbons are special because they are part of a group of compounds that come from living things or things that were once alive. They have carbon and hydrogen in them, which is what makes them different from other types of compounds.

Explanation:

Answer:

B.) trigonal bipyramidal

Explanation:

A.) is incorrect. In octahedral molecules, the central atom is bonded to six other atoms.

B.) is correct. In trigonal bipyramidal structures, the central atom is bonded to five other atoms.

C.) is incorrect. In tetrahedral molecules, the central atom is bonded to four other atoms.

D.) is incorrect. There is not such thing as a pyramidal molecular shape. This term is most likely referring to the shape, trigonal pyramidal. However, this is still incorrect. In trigonal pyramidal molecules, the central atom is bonded to three other atoms and a lone pair of electrons.

Answer:

Aluminium reusable water bottle Purpose of aluminum: Weighs less by volume than most other metals and comes at an affordable price.

Explanation:

The mass (in grams) of chlorine gas is needed to react with 251 grams of iron is 479 grams. Option C.

To determine the mass of chlorine gas needed to react with 251 grams of iron, we need to use the stoichiometry of the balanced chemical equation:

2Fe + 3Cl2 → 2FeCl3

From the balanced equation, we can see that 2 moles of iron (Fe) react with 3 moles of chlorine gas (Cl2) to produce 2 moles of iron(III) chloride (FeCl3).

To calculate the mass of chlorine gas, we can follow these steps:

Step 1: Convert the given mass of iron (Fe) to moles.

Using the molar mass of iron (Fe), which is approximately 55.85 g/mol, we can calculate the number of moles of iron:

moles of Fe = mass of Fe / molar mass of Fe

moles of Fe = 251 g / 55.85 g/mol

moles of Fe ≈ 4.5 mol (rounded to one decimal place)

Step 2: Use the mole ratio from the balanced equation to find the moles of chlorine gas (Cl2) needed.

From the balanced equation, we know that 2 moles of Fe react with 3 moles of Cl2. Therefore, the moles of Cl2 can be calculated as:

moles of Cl2 = (moles of Fe / 2) * 3

moles of Cl2 = (4.5 mol / 2) * 3

moles of Cl2 ≈ 6.75 mol (rounded to two decimal places)

Step 3: Convert the moles of chlorine gas to grams.

Using the molar mass of chlorine gas (Cl2), which is approximately 70.90 g/mol, we can calculate the mass of chlorine gas:

mass of Cl2 = moles of Cl2 * molar mass of Cl2

mass of Cl2 = 6.75 mol * 70.90 g/mol

mass of Cl2 ≈ 479 grams (rounded to the nearest whole number) Option C is correct.

For more such question on mass. visit :

https://brainly.com/question/19385703

#SPJ8

Answer:

C. or B.

Explanation:

The reason I chose c best, is when your cooking something with a pot with food in it max heat in about 5 minutes, the handle starts to get warmer every minute. This is conduction, where the heat transfers from the very bottom all the way to the very edge of something that is heated at a certain temperature.