The atomic number of the element with the maximum number of unpaired 2p electrons in the ground state is

1) 1 2) 7 3) 13 4) 8

Energy and mass in a biological cycle or any chemical reaction, is always conserved. Therefore, in below given ways, we can see the transformation of energy and matter in a carbon cycle.

Energy transfer is a phenomenon in which energy transfer from one matter to another matter. Energy can be transferred in two forms that are by doing work or by transferring heat.

Plants take carbon from the atmosphere in order to perform photosynthesis. Animals ingest these plants, and carbon is bioaccumulated in their bodies. Carbon is returned to the atmosphere when animals and plants die and decompose. A portion of the carbon that is not released back into the atmosphere is converted into fossil fuels. These fossil fuels are subsequently utilized for man-made activities, releasing more carbon into the atmosphere.

Therefore, in below given ways, we can see the transformation of energy and matter in a carbon cycle.

Learn more about energy transfer, here:

https://brainly.com/question/18649915

#SPJ4

Answer:

a. TAGGGCTC

Explanation:

DNA contains the bases Adenine (A), Cytosine (C), Guanine (G), and Thymine (T).

Each base is paired up in DNA replication as follows: Adenine (A) with Thymine (T) and vice versa, and Guanine (G) with Cytosine (C) and vice versa.

If one DNA strand reads ATCCCGAG the other strand will be made up of the complementary bases TAGGGCTC. The correct option is a.

DNA bases are present in the between of DNA strands. There are four types of bases present in DNA. These are Adenine (A), Cytosine (C), Guanine (G), and Thymine (T). These bases are joined by hydrogen bonds to each other.

DNA bases are made up of nucleotides. Adenine is joined with thymine with double bonds and Cytosine is paired with triple hydrogen bonds.

Adenine (A) is coupled with Thymine (T) and vice versa, while Guanine (G) is paired with Cytosine (C), and vice versa, during DNA replication.

So, according to the pairing, the complementary base pair to the given DNA strand reads ATCCCGAG will be TAGGGCTC.

Thus, the correct option is a.TAGGGCTC.

To learn more about DNA bases, refer to the link:

https://brainly.com/question/2293843

#SPJ2

Answer:

The Moon orbits the Earth which orbits the Sun.

Explanation:

one of the BEST actions the US government can take to slow global warming is invest in clean technologies such as wind and solar power

To learn more about global warming refers to:

brainly.com/question/26402403

#SPJ1

Answer:

the answers is 1.204×10/23

Explanation:

idek

According to Avogadro's number, there are 1.204 × 10²³ atoms in 39.39 g of gold.

To determine the number of atoms in 39.39 g of gold, we need to use the Avogadro's number, which is equal to 6.022 × 10²³ atoms/mol.

First,  need to convert the given mass from grams to moles by dividing it by the molar mass of gold, which is 196.967 g/mol.

\(\dfrac{39.39}{196.96}\\=0.19999\) moles

Now, we can use Avogadro's number to find the number of atoms:

\(0.19999\times6.023\tims10^2^3\\=1.204\times10^2^3\)

Therefore, the prospector has 1.204 × 10²³ atoms of gold.

Learn more about Avogadro's number,here:

https://brainly.com/question/28812626

#SPJ6

The space filling model shows all the atoms that are  involved while the ball and stick model shows the inter connecting bonds in the compound.

The space filling model and the ball-and-stick model are two commonly used representations of molecules in chemistry.

The ball-and-stick model represents the atoms of a molecule as balls and the chemical bonds between them as sticks. The size of the balls and the length of the sticks are proportional to the size of the atoms and the length of the bonds, respectively. This model gives a good idea of the relative positions of the atoms in the molecule and the angles between the bonds, but it does not show the relative sizes of the atoms or the amount of empty space between them.

Learn more about the ball  and stick model:https://brainly.com/question/16570235

#SPJ1

Answer:D

Explanation:

i got it right LOL

Among the given options, the one which is not a major function of musculoskeletal system is helping the lungs take in air. All others including, energy, digestion, movement of bones etc. are its function.

The musculoskeletal system in human body is composed of muscles and bones. The bones in our body are wrapped by the muscles. Muscles helps for the smooth movement of bones.

Muscles convert the chemical energy from food into kinetic energy and use  it for the movement of muscles and bones. Muscles contraction needs intake of energy.

The contraction and relaxation of smooth muscles helps for the easy movement of food through the digestive track. Musculoskeletal system also helps for the movement of other organ system. Hence, option b is not the major function of this organ system.

Find more on musculoskeletal system :

https://brainly.com/question/13837035

#SPJ6

it will sink

Explanation:

the solid iron will sink because it is dense than the liquid iron I will sink and it will melt

Answer:sink

Explanation:

Explanation:

here's the answer to your question about

Answer:

\(\boxed {\boxed {\sf V_2=75 \ mL}}\)

Explanation:

Since the pressure is constant, the only variables we need to work with are temperature and volume. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula is:

\(\frac{V_1}{T_1}=\frac{V_2}{T_2}\)

Originally, the gas was 50 milliliters at 20 degrees celsius. Substitute these values into the left side of the equation.

\(\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{T_2}\)

We don't know the volume of the new gas, but we know the temperature was changed to 30 degrees celsius.

\(\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}\)

Since we are solving for the new volume, we must isolate the variable. It is being divided by 30 °Cand the inverse of division is muliplication. Multiply both sides by 30 °C.

\(30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}* 30 \textdegree C\)

\(30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}= V_2\)

The units of degrees celsius cancel, so we are left with milliliters as the units.

\(30*\frac{50 \ mL}{20}= V_2\)

\(\frac{1500 \ mL}{20}= V_2\)

\(75 \ mL=V_2\)

The new volume of the gas is 75 milliliters.

The energy transferred is 30Joules

Potential energy is a type of energy, and when differences are taken into account, the definition of potential is potential energy (or potential energy difference) per unit charge.

The expression for potential energy is given as

V=E/Q.

Substituting our given data into the expression we have

E = QV

E = 1*230

E = 230Joules

We should measure voltage in terms of energy per charge, and we do so because voltage represents the difference in electric potential energy per charge. The term "volt" is short for "joule per coulomb," therefore a 1.5 volt battery, for instance, gives each coulomb of charge 1.5 joules of electric potential energy.

Learn more about Potential energy here:

https://brainly.com/question/14427111

#SPJ1

Explanation:

We have a 63.9 g sample of calcium hydroxide. First we have to convert those grams into moles. To do that we have to use the molar mass of calcium hydroxide.

Calcium hydroxide = Ca(OH)₂

molar mass of Ca = 40.08 g/mol

molar mass of O = 16.00 g/mol

molar mass of H = 1.01 g/mol

molar mass of Ca(OH)₂ = 1 * 40.08 g/mol + 2 * 16.00 g/mol + 2 * 1.01 g/mol

molar mass of Ca(OH)₂ = 74.10 g/mol

mass of Ca(OH)₂ = 63.9 g

moles of Ca(OH)₂ = 63.9 g /(74.10 g/mol)

moles of Ca(OH)₂ = 0.862 moles

In 1 molecule of Ca we have 2 atoms of O. So in 1 mol of Ca(OH)₂ we will have 2 moles of O atoms.

1 mol of Ca(OH)₂ = 2 moles of O atoms

moles of O atoms = 0.862 moles of Ca(OH)₂ * 2 moles of O /1 mol of Ca(OH)₂

moles of O atoms = 1.724 moles

One mol is similar to a dozen. When we say that we need a dozen eggs we know that we need 12 eggs. If we want a mol of eggs, we want 6.022*10^23 eggs. So one mol of something is 6.022 * 10^23 of that.

1 mol of O atoms = 6.022 * 10^23 atoms

n° of O atoms = 1.724 moles * 6.022 * 10^23 atoms/1 mol

n° of O atoms = 1.04 * 10^24 atoms

Answer: In a 63.9 g sample of Ca(OH)₂ we have 1.04 *10^24 atoms of oxygen.

Answer:

Explanation:

Density is

mass / volume = d

Mass:

840g

Volume:

7 cm x 4 cm  x 10 cm = 280 cm^3

840g / 280 cm^3 = 3 g/cm^3

Tax returns submitted manually have such a 20% chance of being inaccurate, whereas those submitted electronically have such a 0.05% probability.

The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission." Physical documents are represented by digital records (even if they originated in digital format)

The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission."

To know more about Electronically visit:  

https://brainly.com/question/18367541

#SPJ4

Answer:

B. Slightly acidic

Explanation:

pH can be defined as a measure of the negative logarithmic concentration of hydrogen ion (H+) in an aqueous solution.

Basically, the pH scale is used to measure the level of acidity or basicity of an aqueous solution based on a scale of 0 to 14.

An acidic solution has a pH lower than 7 (0 - 6), a basic solution has a pH higher than 7 (7 - 14) and a neutral solution has a pH of exactly 7.

In this scenario, a student was assigned to take water samples from a lake near his home he measured the Ph of one of the water samples to be 6.0. Therefore, this sample of water can be said to be slightly acidic its pH is slightly below 7.

\(65.47 \: g \times \frac{12 \: donuts}{25.64 \: g} = 30.64118565\)

\(i \: have \: 31 \: donuts\)

Answer:

30. 6 so 31 donuts

Explanation:

12d→ 25.64g

xd → 65.47g

SO cross multiply or 65.47g ÷ 25.64g. Which gives 2. 55g then divide by 12 to get 30.6 for X. If you want to check the answer substitute X with 31 and see if you get the 6547g

Answer:

B. Group 17

Explanation:

The element is Bromine. Its electron configuration is:

1s2 2s2p6 3s2p6d10 4s2p5  

You can see that its last orbital is 4p^5 for 5 electrons in the 4p orbital.

The predication that is testable here is that of Raymond. Option D

We have to keep it at the back of our minds that science deals with data that is testable. In other words, science is an empirical discipline. What we mean by this is that we must be able to get at knowledge by testing the data that we have in controlled experiments.

Now, if we look at the responses of the students, we can see that the only one that has to do with something that we can test is the one that said that Ocean surface temperatures are warmer than water at deep-sea vents.

Learn more about hypothesis:https://brainly.com/question/29519577

#SPJ1

Answer:

7 Electrons

Explanation:

What it is fill its valence shell, it would need to acquire 7 electrons - a difficult task for a metal like sodium that is a known electron-loser. So unlike fluorine and oxygen, sodium acquires a full octet by losing electrons and emptying out its outermost shell.

Answer:

28.93 g/mol

Explanation:

This is an extension of Graham's Law of Effusion where \(\frac{R1}{R2} = \sqrt{\frac{M2}{M1} } = \frac{t2}{t1}\)

We're only talking about molar mass and time (t) here so we'll just concentrate on \(\sqrt{\frac{M2}{M1} } = \frac{t2}{t1}\). Notice how the molar mass and time are on the same position, recall effusion is when gas escapes from a container through a small hole. The time it takes it to leave depends on the molar mass. If the gas is heavy, like Xe, it would take a longer time (4.83 minutes). If it was light it would leave in less time, that gives us somewhat an idea what our element could be, we know that it's atleast an element before Xenon.

Let's plug everything in and solve for M2. I chose M2 to be the unknown here because it's easier to have it basically as a whole number already.

\(\sqrt{\frac{M2}{131} } = \frac{2.29}{4.83}\)

The square root is easier to deal with if you take it out in the first step, so let's remove it by squaring each side by 2, the opposite of square root essentially.

\((\sqrt{\frac{M2}{131} } )^2= (\frac{2.29}{4.83})^2\)

\({\frac{M2}{131} } = (0.47)^2\)

\({\frac{M2}{131} } = 0.22\)

M2= 0.22 x 131

M2= 28.93 g/mol

The new concentration of the solution that has 400.0 mL of a 0.425 M solution of NaCl diluted to 900.0 mL is 0.189M

HOW TO CALCULATE CONCENTRATION:

C1V1 = C2V2

Where;

400 × 0.425 = 900 × C2

170 = 900C2

C2 = 170 ÷ 900

C2 = 0.189M

Learn more at: https://brainly.com/question/8795644?referrer=searchResults

Answer:

White dwarfs are the smallest type stars, with a similar size to earth, and with extreme mass. Brown Dwarf. Brown dwarfs are strange altogether.

Explanation:

Answer:

Element   atom    molar mass     Total        % composition

Na               1            23                    40             57.5 %

O                 1            16                     40              40%

H                1               1                      40              2.5 %

The given compound is NaOH.

Na : number of atom= 1

Molar mass= 23 g/mol

Total mass of NaOH = 40 g/mol

% composition by mass = \(\frac{\text {mass of atom}}{\text {Total mass}}\times 100=\frac{23}{40}\times 100=57.5\%\)

O : number of atom= 1

Molar mass= 16 g/mol

Total mass of NaOH = 40 g/mol

% composition by mass = \(\frac{\text {mass of atom}}{\text {Total mass}}\times 100=\frac{16}{40}\times 100=40\%\)

H : number of atom= 1

Molar mass= 1 g/mol

Total mass of NaOH = 40 g/mol

% composition by mass = \(\frac{\text {mass of atom}}{\text {Total mass}}\times 100=\frac{1}{40}\times 100=2.5\%\)

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

hope you have a blessed day:)

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

thank you for the answer i hope EVERYONE has A BLESSED DAY!!!!!!!!!!!!!!!!!!!!!!

The mass of KClO₃ that was decomposed in the given reaction by the ideal gas equation is approximately 7.19 grams.

Given:

Pressure (P) = 0.964 atm

Volume (V) = 0.65 L

Temperature (T) = 22 °C = 22 + 273.15 = 295.15 K

The ideal gas law: PV = nRT

Where:

P = Pressure in atm

V = Volume in liters

n = Number of moles

R = Ideal gas constant = 0.0821 L·atm/(mol·K)

T = Temperature in Kelvin

n = (PV) / (RT)

n = (0.964 atm) × (0.65 L) / (0.0821 L·atm/(mol·K) × 295.15 K)

n ≈ 0.0294 mol

2 moles of KClO₃ produce 1 mole of O₂. Therefore, the number of moles of KClO₃decomposed would be:

Moles of KClO₃= 2 × 0.0294 mol

Moles of KClO₃≈ 0.0588 mol

Molar mass of KClO₃= 122.55 g/mol

Mass of KClO₃= Moles of KClO₃× Molar mass of KClO₃

Mass of KClO₃≈ 0.0588 mol × 122.55 g/mol

Mass of KClO₃≈ 7.19 grams

Learn more about ideal gas equation, here:

https://brainly.com/question/15379358

#SPJ1

Toluene compound reacts third fastest with fuming sulfuric acid.

The reaction is attached in figure -

What is toluene?

What is a toluene used for?

Learn more about Toluene

brainly.com/question/9530946

#SPJ4

The factors that determine the type of magma are all of the following, except the silica content of the magma.

Magma is the most ancient fluid on the planet. It is a compound composed of silicates, oxides, as well as other volatile constituents. The magma is contained in a magnetic chamber beneath the earth's crust. Magma erupts as lava when it is moulted.

When magma escapes from the planet's interior and forms a hot magma known as lava, igneous rocks form. Magma can erupt from the earth's interior and bear children to volcanic eruptions, or it can solidify within the earth's cracks to form sills, and other features. Silica-rich magmas have a higher viscosity than mafic magmas. Mafic magmas have a higher temperature than silica-rich magmas.

To know more about the Magma, here

https://brainly.com/question/988610

#SPJ4

The factors that determine the type of magma are all of the following, except the  silica content  of the magma.

Magma is considered as the primitive fluid on the planet. It comprises of silicates, oxides, and other volatile constituents. The magma is present under the  magnetic chamber beneath the earth's crust.

Hence, magma when escapes from the planet's interior it forms a hot magma which is also known as lava. Magma can erupt from the earth's interior through volcanic eruptions, or it can solidify within the earth's cracks to form sills. In general ,Silica-rich magmas is having higher viscosity than mafic magmas. Mafic magmas have a higher temperature than silica-rich magmas.

To learn more about Magma , here

brainly.com/question/16940653

#SPJ4

The enthalpy change, ΔH, of a process is defined as the quantity of heat transferred in or out of a system as it undergoes a change at constant pressure. Option C is correct.

The correct option to choose from the given options is (c) The quantity of heat transferred in or out of a system as it undergoes a change at constant pressure.

What is enthalpy change?

Enthalpy change, ΔH, is defined as the amount of heat energy absorbed or released when a chemical reaction occurs at a constant pressure. A negative ΔH implies that the reaction is exothermic, while a positive ΔH implies that the reaction is endothermic.ΔH = H (products) - H (reactants)The unit of enthalpy change is Joules (J) or calories (cal), and it is frequently given in kilojoules (kJ) or kilocalories (kcal).

To know more about enthalpy  click on below link:

https://brainly.com/question/13996238#

#SPJ11