which element has the following ground state electron configuration? 1s22s22p63s23p5 select the correct answer below: cl f s ar

Answer:

In a survey of a group of people, it was found that 60 0f them have

business, 45 have government jobs, 125 have farming, 27 have business

only, 15 have government job only, 10 have business and government

job only, 5 have government job and farming only.

i) How many people have all the profession?

ii) How many people were there in a survey?

Answer:

meiosis, mitosis

Explanation:

well if your asking for the cells, they split into 2 via mitosis. This is known as cell division which is what creates new body cells. But if you are talking about meiosis it makes the components for sexual reproduction in multicellular organisms like humans, who then sexually reproduce. Meiosis creates egg and sperm cells.

The body cells in multicellular organisms reproduce through mitosis and through meiosis. The correct options are A and D.

Cells in multicellular organisms are specialized to carry out particular tasks. For instance, red blood cells in humans are designed specifically to provide oxygen and nutrients to all bodily cells.

Additionally, germinal gametic cells divide by meiosis, whereas somatic cells of multicellular animals divide via mitosis.

Cell division, which is what produces new body cells, is this process. Meiosis, on the other hand, creates the elements needed for sexual reproduction in multicellular creatures like humans, who subsequently engage in sexual reproduction.

Therefore, the correct options are A. Through mitosis, and D. Through meiosis.

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Answer:

There are five types of kinetic energy: radiant, thermal, sound, electrical and mechanical. Let us look at some of the kinetic energy examples and learn more about the different types of kinetic

hope it is helpful to you

Answer:

30.5%

Explanation:

A solution's percent concentration by mass,

% m/m

, tells you how many grams of solute, which in your case is an unknown acid, are present in 100 g of solution

As you know, a solution contains a solute and a solvent, which more often than not is water. This means that a solution's

% m/m

concentration tells you how many grams of solute and grams of solvent must be mixed to get

100 g

of solution.

In your case, you know that you get

1.32 g

of acid in

4.33 g

of solution. To find the solution's percent concentration by mass, use this as a conversion factor to figure out how many grams of solute you'd get in

100 g

of solution

The rapid destruction of tropical rain forests is harmful because it reduces habitats for animals and plants, leading to a decrease in biodiversity.

It can also cause climate change due to reduced carbon absorption and an increase in heat-trapping greenhouse gases, resulting in more extreme weather patterns.  The destruction of tropical rain forests is a serious concern, with millions of acres destroyed worldwide each year. This destruction can be attributed to many causes, such as illegal logging, wildfires, over-farming and over-grazing. As a result, essential services and resources provided by the forests, such as clean water and soil health, are diminished. Additionally, the trees themselves can store large amounts of carbon, which is released into the atmosphere when they are burned or cut down. This further contributes to climate change, as carbon dioxide is a major heat-trapping greenhouse gas. Furthermore, deforestation reduces the habitats of many animals, leading to a decrease in biodiversity.

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Answer:

A

B

C

Explanation:

Remark

Delta H is put on the reactant side of the equation. If delta H is plus the reaction goes to the right. If anything causes delta H to decrease, the reaction shifts left when delta H is originally negative.

One

Delta H is positive which means that heat has to be added before the reaction can take place. If the temperature decreases, then H2 will decrease because delta H is fighting off the temperature decrease The answer is A

Two

Pressure decreases. The side (left or right) with the most number of moles will be favored. The left side has 2 moles. The right side has 4 moles. The right side is favored. Answer: B

Three

The concentration of NH3 increases. That will increase the products. H2 increases. Answer C

Answer:

C2H5OH +3O2 = 2Co2+ 3H2O

Explanation:

The balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

A balanced chemical equation is one in which the count of atoms in all of the molecules is equivalent on both sides of the equation. The balancing of a particular chemical equation is governed by the Law of Conservation of Mass.

Balancing chemical equation is shown as below:

It can be seen that the count of carbon atom in left side 2 on the other hand the count of carbon in right side only one. By multiply with 2 in right side of the reaction , equation will be balanced.

Therefore, the balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

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reactants because it had other chemicals, when more are mixed it will be more stronger.

It is the correct answer

Answer:

The time you will get to Atlantic City is 3 pm

Explanation:

Given;

speed limit, v = 50 km/h

distance to be traveled, d = 150km

The time of the motion is given as;

time = distance / speed

t = (150 km) / (50 km/h)

t = 3 hours

Thus, if you leave your home at noon, the time you will get to Atlantic City is given as;

time to get home = 12 pm + 3hours = 3 pm

Therefore, the time you will get to Atlantic City is 3 pm

For n=1, ∫Ψ* Ψ d³x = 1

The ground state wavefunction of hydrogen satisfies the normalization condition ∫Ψ* Ψ d³x = 1.

To show that the ground state hydrogen wavefunction is properly normalized, we need to calculate the integral of the wavefunction squared, Ψ², over all space and demonstrate that it equals 1.

The ground state wavefunction of hydrogen is given by:

Ψ(r) = (1/√πa₀³) \(e^(^-^r^/^a^_0)\)

where a₀ is the Bohr radius.

To show normalization, we evaluate the integral:

∫ Ψ*(r) Ψ(r) d³r

where Ψ*(r) represents the complex conjugate of Ψ(r).

Substituting the expression for Ψ(r), we have:

∫ (1/√πa₀³) \(e^(^-^r^/^a^_0)\)      (1/√πa₀³) \(e^(^-^r^/^a^_0)\) d³r

Expanding the product and rearranging the terms, we get:

(1/π²a₀⁶) ∫ \(e^(^-^2^r^/^a^_0)\) d³r

The integral represents the volume integral over all space, so we can rewrite it as:

(1/π²a₀⁶) ∫∫∫  \(e^(^-^2^r^/^a^_0)\) dxdydz

Since the wavefunction is spherically symmetric, we can use spherical coordinates for the integral. The volume element in spherical coordinates is given by r² sin(θ) dr dθ dφ.

Therefore, the integral becomes:

(1/π²a₀⁶) ∫∫∫  \(e^(^-^2^r^/^a^_0)\) r² sin(θ) dr dθ dφ

To solve the integral, we perform the integration in each coordinate:

∫∫∫  \(e^(^-^2^r^/^a^_0)\) r² sin(θ) dr dθ dφ = ∫ [0,∞]  \(e^(^-^2^r^/^a^_0)\) r² dr ∫ [0,π] sin(θ) dθ ∫ [0,2π] dφ

The φ integral gives 2π, and the θ integral gives 2.

∫ [0,∞]  \(e^(^-^2^r^/^a^_0)\) r² dr = (\(-a_0^3^/^8\)) [ \(e^(^-^2^r^/^a^_0)\) (2r² + 2r\(a_0\) + \(a_0^2\))]

Evaluating this integral from 0 to ∞ gives a_0^3/8.

Thus, the integral becomes:

(1/π²a₀⁶) (\(-a_0^3^/^8\)) (2)(2π)

Simplifying, we get:

(1/π²a₀⁶) (\(a_0^3\)/4π)

The π terms cancel out, and we are left with:

1/(2\(a_0^3\) )

This value is equal to 1, confirming that the ground state hydrogen wavefunction is properly normalized.

Therefore, the ground state wavefunction of hydrogen satisfies the normalization condition ∫Ψ* Ψ d³x = 1, demonstrating that it is properly normalized.

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Explanation:

Endogenous pathway for lipid metabolism: VLDL is formed in the liver from triglycerides and cholesterol esters. ... In the liver, LDL is converted into bile acids and secreted into the intestines. In non hepatic tissues, LDL is used in hormone production, cell membrane synthesis, or stored.

Due to its tiny size and high charge, lithium ion is most likely to combine with OH- to produce a soluble ionic molecule. Although they have a lower solubility, Ag+, Pb2+, Ni2+, and Zn2+ can also form ionic compounds.

With potassium cation  and hydroxide anion , the +1 charge already counterbalances the -1 charge, without the need for additional cations or anions. This indicates that to create a neutral chemical with the formula , one unit of each ion must be added.

When naming binary ionic compounds, the nonmetal anion (element stem + -ide) comes after the cation (specifying the charge, if necessary). Without employing prefixes, it is possible to tell from the compound name how many of each element are present.

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Answer:

hahahaha

Explanation:

hahahahahhahahaha soooo funny

Answer:

1.04 L.

Explanation:

What is given?

Temperature 1 (T1) = 240 K.

Pressure 1 (P1) = 670 mmHg.

Volume 1 (V1) = 1.28 L.

Temperature 2 (T2) = 198 K.

Pressure 2 (P2) = 680 mmHg.

What do we need? Volume 2 (V2).

Step-by-step solution:

To solve this problem, we have to use the combined gas law. The combined gas law expresses the relationship between the pressure, volume, and absolute temperature of a fixed amount of gas. For a combined gas law problem, only the amount of gas is held constant. The formula of combined gas law is:

We need to find the volume 2 (V2), so let's solve for this unknown value and let's replace the given data that we have:

The final volume for this case would be 1.04 L, the volume is being reduced.

Ca(s) + 2H2O(l) --->Ca(OH)2(aq) + H2(g)

1 : 2 1 : 1

n H2O = 0.15 moles

for every 2mole ratio of H2O = 0.15 moles

relate to the mole ratio of calcium hydroxide.

2 mole ratio = 0.15moles

1 mole ratio = ?

= 0.075 moles.

from,

n = mass/molar mass

Molar mass of Ca(OH)2 = 74g/mol

n Ca(OH)2 = 0.075moles

m Ca(OH)2 = 74*0.075

m Ca(OH)2 = 5.55grams.

The grams of calcium hydroxide formed are 5.55g.

Answer:

5.0 L

Explanation:

We must recall that pressure is only held constant when referring to Charles law. We then put down the parameters given in the question.

Initial volume V1= 10.0 L

Initial temperature T1= 546 K

Final temperature T2= 273 K

Final volume V2= the unknown

From the statement of Charles law;

V1/T1 = V2/T2

V1T2= V2T1

V2= V1T2/T1

V2= 10.0 × 273/ 546

V2= 5.0 L

Therefore, the new (final) volume is 5.0 L

Answer:

Since the temperature is halved, the volume will also be halved.

The final volume is 5.0 L

Explanation:

Step 1: Data given

The pressure is constant

The initial volume of the gas = 10.0 L

The initial temperature = 546 K

The temperature is cooled to 273 K

Step 2: Calculate the final volume

V1/T1 = V2/T2

⇒with V1 = the initial volume = 10.0L

⇒with T1 = the initial temperature = 546 K

⇒with V2 = the final volume = TO BE DETERMINED

⇒with T2 = the final temperature = 273 K

10.0 L / 546 K = V2 / 273 K

V2 = (10.0 L * 273 K) / 546 K

V2 = 5.0 L

Since the temperature is halved, the volume will also be halved.

The final volume is 5.0 L

The study of chemicals and bonds is called chemistry.

The correct answer is 50, 50, and 70.

In an element, there are the following things:-

In elements, the number of protons and electrons are the same. hence, the number of electrons and protons in an element is 50.

The neutrons are defined as the proton minus mass number. Hence, the number of neutrons is 120-50=70

Hence, the answer is  50, 50, and 70

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The most accurate measurement for the length of an object of 15.0 m long is 15.2m. Option (B) is correct.

Accuracy is the measurement tolerance of the instrument in industrial instrumentation. It refers to the limits of the errors made when the instrument is used. Resolution is simply how fine the measuring instrument is set to read to tenths, hundreds, thousands, or whatever.

Measurement can be explained as the process of numerical evaluation of a dimension with standard measuring instruments. The elements of the measuring system involve instrumentation, calibration standards,  human operator limitations, environmental influence, and features of the workpiece.

Given, the length of the object is equal to 15 meters. After being measured with an apparatus the only lies closest to 15 m can be considered as the most accurate measurement.

Therefore, the length of 15.2 m is the most accurate measurement for the length of an object with an actual length 15 m.

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Answer:

a) pentane

b) 1,3-dimethyl butane

c) 3,4-diethyl-5-methlyl heptane

d) 1,3,5-triethyl-2,4,6-trimethyl  cyclohexane

Explanation:

The essence of IUPAC nomenclature is to provide a generally accepted nomenclature for chemical compounds which enables the structure of a compound to be drawn from its name without ambiguity.

In order to name straight chain organic compounds, we have to identify the parent chain and then give numbers to the substituents or locants such that they have the lowest possible numbers in alphabetical order.

The correct names of the organic compounds in the question are;

a) pentane

b) 1,3-dimethyl butane

c) 3,4-diethyl-5-methlyl heptane

d) 1,3,5-triethyl-2,4,6-trimethyl cyclohexane

Answer:

C proton hope it helps <3

Explanation:

It is possible for the same two elements to form two different ionic compounds by exchanging electrons in different ways, resulting in different chemical formulas and properties.

Yes, it is possible for the same two elements to form two different ionic compounds. Ionic compounds are formed by the transfer of electrons from one element to another element in the process of chemical bonding.When an element loses one or more electrons, it becomes positively charged and is called a cation. On the other hand, when an element gains one or more electrons, it becomes negatively charged and is called an anion. The oppositely charged ions attract each other to form ionic compounds.For example, sodium (Na) and chlorine (Cl) can form an ionic compound called sodium chloride (NaCl) in which sodium loses one electron to form a positively charged sodium ion (Na+), and chlorine gains one electron to form a negatively charged chloride ion (Cl-). These oppositely charged ions attract each other to form an ionic bond between them.However, sodium and chlorine can also form other ionic compounds with different formulas. For instance, sodium can lose two electrons to form a positively charged ion with a charge of 2+ (Na2+), while chlorine can gain one electron to form a negatively charged ion with a charge of 1- (Cl-). The two ions can attract each other to form the ionic compound sodiumdichloride (NaCl2).

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Long-term heat loss to the calorimeter is a problem, especially for slow-moving processes.

The water iscontained in a tank whose thermal capacity and weight were predete partially rmined before the experiment began. Calculating heat and flow rates involves measuring the rise in water temperature and volume over a predetermined period of time.

In contrast, if the reaction absorbs heat, heat is transmitted from the calorimeter to the system, lowering the calorimeter's temperature.

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Answer:

2 molecules of hydrogen and 1 molecule of oxygen

Explanation:

The question is unclear, but if you are asking how many molecules are in one molecule of water, it is the answer provided above.

Answer: A. They were traveling through different types of rocks

Explanation:

Answer:

v = 78.5 km/h

Explanation:

It is given that, the distance between one city to another is 314 km. The overall trip takes 4 hours. We need ton find average velocity. It is equal to the total displacement divided by total time taken. So,

\(v=\dfrac{d}{t}\\\\v=\dfrac{314\ km}{4\ h}\\\\v=78.5\ km/h\)

So, average velocity is 78.5 km/h.

The term "polyatomic ion" tells us that we are working with a covalent covalent particle made of two or more atoms, joined to form a unit. Therefore, option B is correct.

Polyatomic ions are ions that have more than one atom. Nitrate ion, NO3-, for example, has one nitrogen atom and three oxygen atoms. A polyatomic ion's atoms are usually covalently bonded to one another and thus remain together as a single, charged unit.

Polyatomic ions are ions composed of two or more atoms joined by covalent bonds but with a net electron deficiency or surplus, resulting in an overall charge on the group.

Thus, option B is correct.

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Answer:

1. The methods used for the separation were filtration and evaporation

Explanation:

The mixture of table salt and sand is first dissolved in distilled water. The salt is soluble in water but the sand is not. The solution is now filtered. The filtrate contains the salt solution while the residue is the sand. The filtrate is now evaporated to dryness to recover the table salt from solution.

From the experiment we can clearly see that table salt is highly soluble in water.

One precaution during the experiment is to ensure that the filter paper was placed correctly before filtration started.

Answer:

O E = hf

Explanation: