How many electrons can occupy a filled 3p sublevel?.

             Where is the picture?                                                                         

The strongest base among the given options is NH2−​.

The strength of a base is determined by its ability to accept or donate a pair of electrons. In general, a stronger base is characterized by a weaker conjugate acid, meaning it readily accepts a proton (H+). Several factors influence the strength of a base, including the stability of the conjugate acid formed after accepting a proton and the basicity of the atom or group involved.

NH2−​ (amide ion) is the strongest base among the options provided. The amide ion has a lone pair of electrons on the nitrogen atom, which can readily accept a proton to form NH3. NH3 is a weaker conjugate acid compared to the conjugate acids of the other options, such as HCl, H2O, H2S, and CH4.

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Answer:

\(M_{acid}=3.57M\)

Explanation:

Hello there!

In this case, since this acid-base neutralization is performed in a 1:2 mole ratio of acid to base as the former is a diprotic acid (two hydrogen ions in the molecule), we can write the following equation:

\(2M_{acid}V_{acid}=M_{base}V_{base}\)

In such a way, we can solve for the molarity of the acid, given the molarity and concentration of the NaOH base and the volume of the acid:

\(M_{acid}=\frac{M_{base}V_{base}}{2V_{acid}}\)

Thus, we plug in the given data to obtain:

\(M_{acid}=\frac{38.70cm^3*1.90M}{2(10.30cm^3)} \\\\M_{acid}=3.57M\)

Best regards!

Answer:

The volume of O2 is 7.11L.

Explanation:

1st) It is necessary to balance the chemical reaction:

The reaction is balanced, because there is the same amount of each element in both sides of the reaction.

2nd) From the balanced reaction, we know that from 2 moles of hydrogen peroxide (H2O2), 1 mole of oxygen gas is produced. Now, using the molar mass of hydrogen peroxide (34g/mol), we can calculate the number of moles of O2 that will be produced from 28g of H2O2:

- Conversion from grams to moles:

- Number of moles of O2 produced:

3rd) Finally, we can calculate the volume of O2 using the Ideal Gases formula, replacing the values of pressure (2.0atm), number of moles (0.41moles) and temperature (150°C=423K):

Remember that to use the Ideal Gases formula, the units must be: atm, liter, mol and Kelvin.

So, the volume of O2 is 7.11L.

Answer:

True acid deposition is just a bigger term used to describe acid rain.

Answer:

1. Chief executive officer = Nucleus.

2. Power house = Mitochondrion.

3. Maintenance team = Lysosomes.

4. Functional managers = Chromosomes.

5. Assembly line workers = Ribosomes.

6. Assembly line = Endoplasmic Reticulum.

7. Security and support = Cytoskeleton.

8. Drivers or messengers = Vesicles.

9. Packaging unit = Golgi apparatus.

10. Gate man/procurement unit = Cell membrane.

Explanation:

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.

Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.

Factory worker = Cell organelle.

1. Chief executive officer = Nucleus.

The nucleus controls all the activities taking place in the cell and the synthesis of proteins.

2. Power house = Mitochondrion.

The mitochondria provides all the energy required in the cell by transforming energy forms.

3. Maintenance team = Lysosomes.

They are responsible for absorbing materials and breaking the materials taken in by the cells.

4. Functional managers = Chromosomes.

They give sets of instructions for the synthesis of products.

5. Assembly line workers = Ribosomes.

They are involved in the build up of proteins.

6. Assembly line = Endoplasmic Reticulum.

This is where the ribosomes perform their tasks.

7. Security and support = Cytoskeleton.

They help to maintain and support the shape of the cells.

8. Drivers or messengers = Vesicles.

They ensure proteins are properly transported to the right and exact location.

9. Packaging unit = Golgi apparatus.

Prepares the protein for export by chemically tagging them.

10. Gate man/procurement unit = Cell membrane.

It is the wall of the cell and typically controls what leaves and enters the cell.

Answer:d

Explanation:

Answer:

gold

Explanation:

Answer:

(d) Carbon

Explanation:

Only 7 elements exists as a diatomic molecule. Hydrogen, Oxygen, Nitrogen, Fluorine, Chlorine, Bromine, and Iodine, which can be remembered as HONCLBRIF or HONFCLBRI

1)The new pressure by Boyles law is 316 mmHg

2) According to the Boyle's law, the pressure would decrease and you would notice an increase in volume.

3) The  new volume of the gas is 2.6 L.

4) The new pressure is  228kPa

Using the Boyles law;

P1V1 = P2V2

P2 = P1V1/V2

P2 = 750 * 0.935/2.22

= 316 mmHg

3) P1V1/T1 = P2V2/T2

P1V1T2 = P2V2T1

V2 = P1V1T2/P2T1

V2 = 1.25 * 2.35 * 273/1 * 308

V2 = 2.6 L

4) Using the Gay Lussac's law;

P1/T1 = P2/T2

P1T2 = P2T1

P2 = P1T2/T1

P2 = 210 * 316/291

= 228kPa

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Answer:

0.5moles

Explanation:

Given parameters:

Volume of solution= 0.25L

Molarity of solution = 2.00M

Unknown:

Number of moles  = ?

Solution:

To solve this problem;

  Molarity is the number of moles of solute in a given volume of solution, so

 Number of moles  = molarity x volume

 Now insert the parameters and solve;

  Number of moles  = 0.25 x 2  = 0.5moles

Answer:

b

Explanation:

got it right on test

Answer:

Explanation:

h

The given statement "Atoms like oxygen "prefer" to have 8 electrons in their valence shells" is True because having 8 electrons in the outermost shell or valence shell makes the atom more stable.

Atoms will gain, lose, or share electrons in order to achieve this stable state. For example, oxygen has 6 valence electrons, which means it needs 2 more electrons to achieve the stable octet configuration. It can do this by bonding with other atoms that have 1 or 2 valence electrons to share or by gaining electrons from other atoms.

This is why oxygen readily forms compounds with other elements, such as water (H2O) and carbon dioxide (CO2). Overall, the octet rule is a fundamental principle in chemistry that helps to explain the behavior and properties of atoms and molecules.

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Answer:

Crisscross method is simply writing the charges crossly near each element. Since oxidation number of Mg (metal) is +2 and oxygen (nonmetal) is -2, if we cross them and write next to each; we get Mg2O2 .

Answer:

.668 mole

Explanation:

1.67 * .4 = .668 mole

London dispersion forces and dipole-dipole interaction are present in the first three compounds, as they are polar. Since tetrafluoromethane is nonpolar, only the London dispersion force exists in it.

Acting between molecules are intermolecular forces. Intramolecular forces, on the other hand, operate within molecules. The forces between molecules are less than those inside them. Van der Waals forces, ion-dipole interactions, the London dispersion force, and dipole-dipole interactions are a few examples of intermolecular forces.

Intermolecular force is the attraction between two atoms or molecules that causes them to join together to form molecules or other substance. In essence, it has a beautiful nature. It also affects atoms and ions.

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The scientific statement is

D. There is life on some other planet in the universe aside from Earth.

A scientific statement is a statement that is based on empirical evidence, logical reasoning, and the scientific method. It is a claim or proposition that can be tested, observed, or measured, and is subject to scrutiny and verification.

Scientific statements are characterized by objectivity, reliance on evidence, and the potential for falsifiability or validation through experiments or further investigation. these statements aim to describe, explain, or predict phenomena in the natural world and are an essential part of scientific inquiry and the advancement of knowledge.

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complete question

Which sentence is a scientific statement?

A.

Food cooked in ceramic pots has a better aroma than food cooked in copper pots.

B.

A tall glass of water tastes better with a lemon wedge and ice cubes.

C.

Today, there are more viewers watching baseball than ice hockey on television.

D.

There is life on some other planet in the universe aside from Earth

Answer:

The grey squirrel.

Explanation:

This is your answer because the white one would have a harder time to blend in with the tree's and the environment, whilst the grey one is better suited for its environment better due to the fact that it can blend in with the trees, and hide better.

Algae blooms are most often caused by eutrophication.

Algae blooms are are dense layers of tiny green plants that occur on the surface of lakes and other bodies of water when there is an overabundance of nutrients (primarily phosphorus) on which algae depend.

Algae species tend to proliferate in growth (bloom) in the presence of abundance nutrients. This abundance of nutrients is as a result of a process called eutrophication.

Eutrophication is the ecosystem's response to the addition of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.

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To make an abstract design, use the MS Paint tool. To build the design, you may utilize form tools such as circles, squares, and triangles. You may also utilize the color pallet to add color to the shapes.

You may also use the paint brush to draw patterns or lines. You may use the text tool to add text to the design for the title. You may select a typeface and color that compliments the overall design. For example, you might call it "Chaotic Harmony" or "Colorful Illusion" to convey the abstract design. You may use the text tool to add text to the design for an intriguing title. You may select a typeface and color that compliments the overall design. a simple abstract design using shape tools and color palette on MS paint. Give it an interesting title using paint tool.​ You may use the text tool to add text to the design for an intriguing title. You may select a typeface and color that compliments the overall design.

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answer

Avogadro's law states that, at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles present. In other words, equal volumes of gases at the same pressure and temperature contain the same number of molecules - this is true regardless of their physical properties or chemical nature.

This number of molecules is

6.022

⋅

10

23

and is known as Avogadro's number,

N

A

.

Matematically, Avogadro's law can be written like this

V

n

=

c

o

n

s

t

, or, better yet,

V

1

n

1

=

V

2

n

2

.

Avogadro's law, as well as Boyle's law and Charles' law, are special cases of the ideal gas law,

P

V

=

n

R

T

. If temperature and pressure are kept constant, and knowing that

R

is of course constant, then

P

V

=

n

R

T

→

P

V

n

=

R

T

→

V

n

=

R

T

P

=

c

o

n

s

t

, which represents Avogadro's law.

The ideal gas law can also be written to incorporate

N

A

, since the number of moles are actually the number of molecules divided by Avogadro's number

P

V

=

N

N

A

⋅

R

T

, where

N

represents the number of molecules.

Answer: smart guess i have is c

Explanation:

guessing sorry

The molarity of a solution in which 55.49 g of calcium chloride is dissolved in enough water to make 500. ml of solution will be 1M.

The quantity of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. The term "molarity" can also refer to a solution's molar concentration.

Calculation of molarity is shown as:

Given data:

Mass of \(CaCl_{2}\) =55.49g

Molar mass of  \(CaCl_{2}\)  =40+35+35=110g

Moles = mass / molar mass

Moles = 55.43 / 110

Moles = 0.50 mol

Molarity can be calculated by using the formula:

Molarity = moles of solute / solution

Molarity = 0.5 × 1000 / 500

Molarity = 1 M

Therefore, the molarity of the calcium chloride solution will be 1 M.

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Answer:

3966.82 J

Explanation:

q=sm∆T

q=73×13×4.18

the specific heat for water is 4.18

Answer:

\(\boxed {\boxed {\sf 39,668.2 \ Joules}}\)

Explanation:

We are given the mass and change in temperature, so we must use this formula for heat energy:

\(q=mc \Delta T\)

The mass is 73 grams. Water's specific heat is 4.18 J/g × °C. Let's calculate the change in temperature

Now we know all the variables and can substitute them into the formula.

\(m= 73 \ g \\c= 4.18 \ J/g* \textdegree C \\\Delta T= 13 \ \textdegree C\)

\(q= (73 \ g )(4.18 \ J/g*\textdegree C)(13 \textdegree C)\)

Multiply the first numbers together. The grams will cancel.

\(q= 3051.4 \ J/\textdegree C (13 \textdegree C)\)

Multiply again. This time, the degrees Celsius cancel.

\(q= 39668.2 \ J\)

39,668.2 Joules of heat energy are absorbed.

Answer:

NH

3

acts as a Bronsted-Lower acid by giving its lone pair electrons.

Only in reaction 1 and 2 it acts as Bronsted-Lowry acid.

Explanation:

hope it's help you

Answer:

one generation to the next via DNA,

Explanation:

Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information. ... Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes.

Answer:

If I remember correctly, 0.0149991895187944

Explanation:

hope this helps:)