Which manufacturing process is shown in the photograph?
A. Combining
B. Forming
C. Separating
D. Conditioning​

Atomic orbitals are places on an atom where there is a very high chance of finding electrons. Electrons are located in the area termed the electron cloud that surrounds the nucleus of an atom.

The set of primary particles that comprise an atom includes many other particles than the electron. Like other elementary particles, electrons can collide with other particles and, when they are diffracted, exhibit wavelike characteristics. Atomic orbitals are places on an atom where there is a very high chance of finding electrons. A chemical element is made up of an atom, which is the smallest building block of ordinary matter. Every substance—solid, liquid, gas, and plasma—is made up of neutral or ionised atoms. The average atomic diameter is 100 picometers or less.

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Answer:

4NaHCO3---->2Na2CO3+2CO2+2H2O

Phosphorous at 18.9%. According to analysis, sodium, phosphorus, and oxygen make up 42.1%, 18.9%, and 39% of sodium phosphate, respectively.

The ratio of the amounts of each element to the sum of the individual element amounts present in the compound, multiplied by 100, is the definition of the percentage of a given compound. In this instance, the quantity is expressed in grams of the constituent ingredients.

The proportional mass of each component of a compound is known as the percent composition. The mass percent of a compound is the weight of an element expressed as a share of the complex's overall mass. For instance, a molecule of water has a structure of one oxygen atom and two hydrogen atoms.

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To calculate the number of molecules present in 64 grammes of SO2, you first need to know the molar mass of SO2. The molar mass of SO2 is 64.06 g/mol.

Then, you can use the formula: moles = mass divided by molar mass

So, SO2 moles = 64/64.06

The molecular weight of SO2 is approximately 0.998.

Then, you can use Avogadro's number, which is 6.022 x 1023, to calculate the number of molecules:

Molecules = moles multiplied by Avogadro's number

So, molecules of SO2 = 0.998 x 6.022 x 1023

The number of molecules of SO2 present in 64 grammes is approximately 6.00 x 1023.

Note: This is an approximation because the real number of molecules present in 64 g of SO2 can be affected by experimental errors or other sources of uncertainty.

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Answer:

atomic number

Explanation:

# of protons

False All the amino acid based hormones are not lipid soluble and can not cross the plasma membrane.

Amino acid-derived as well as polypeptide hormones are water-soluble and insoluble in lipids. These hormones cannot pass through the plasma membranes of the cells; therefore, their receptors are found on the surface of the target cells.

Amino acids are those molecules which will combine to form proteins.  When the proteins are digested or broken down, amino acids will be left. The human body uses amino acids to make proteins to help out the body: Repair body tissue, Grow, and Perform many other body functions.

Amino acids are also be used as a source of energy by the body.

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CCl4 is a nonpolar covalent bond.

This is because the molecule has a symmetrical shape, with the four chlorine atoms arranged around the central carbon atom in a tetrahedral formation. Because the electrons are distributed evenly around the central atom, there is no partial charge on any one side of the molecule, making it nonpolar.  As a result, the electrons are evenly distributed among the atoms, resulting in no partial charges. This creates a nonpolar bond because there is no separation of charge, meaning the bond is neutral and has no dipole moment. Additionally, chlorine is more electronegative than carbon, so the electrons are pulled closer to the chlorine atoms, further contributing to the nonpolar nature of the bond.  

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An electron configuration that is complete up to a certain partial electron configuration must exist in the noble gas that comes before it.

When fully written out exactly before the partial electron configuration, the electron configuration of the noble gas should provide us with a reliable electron configuration for some element.

Our noble gas should at least be in the third period as the highest principal energy level in the first series bears the number 4. (numerically, the energy level is the same as the period number). Argon would be that noble gas. Note: All noble gases have an electron configuration that contains Np6, where N is the greatest main energy level. The partial electron configuration provided is not that of a noble gas.

Therefore, [Ar] serves as the noble gas that suitably comes before our first partial electron configuration.

The electron configuration of argon is1s²2s²2p⁶3s²3p⁶.. By applying the Aufbau Principle, 4s2 would naturally come after 3p6. Writing out t 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p²; is identical to writing [Ar]4s23d104p2, which also happens to be the electron configuration of germanium.

Hopefully, now that we have the basics established, we can use them to determine the noble gases that come before the remaining partial electron configurations.

Iodine's electron configuration is [Kr]5s²4d¹⁰5p⁵

The electron configuration of fluorine is [He]2s²2p⁵

Lead's electron configuration is [Xe]6s²4f¹⁴5d¹⁰6p²

Magnesium's electron configuration is [Ne]3s²

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Complete Question -

Place each noble gas symbol in front of the appropriate partial electron configuration to create an accurate electron configuration.

The benign liquid alum (aluminium sulphate) is frequently used in water treatment facilities to clear drinking water.

It has been utilised in lakes since the early 1970s to lessen the phosphorus content of the water.

Alum dissolves in water and makes the pollutants in suspension heavier, causing them to settle down more quickly. So, loading refers to the addition of alum.

The most frequent use of alum in water treatment is as coagulants. Impurities were made larger by coagulants so they would settle in the sedimentation tanks. Pathogens found in the water can be killed by alum as well.

It facilitates sludge settlement in the secondary clarifiers, which improves the efficiency of the recycled water treatment process by allowing for the passage of cleaner, less turbid water. Additionally, struvite does not accumulate inside the digesters as a result of the alum in the effluent.

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The molar masses of molecules can be determine by  finding the atomic mass of an element on the periodic table and sum every element in the compound.

The mole is typically used by chemists to measure how many atoms or molecules make up a substance. According to Avogadro's number, one mole (abbreviated mol) equals 6.022x10²³ molecular entities. Each element has a unique molar mass based on the weight of 6.022x10²³ of its atoms (1 mole).

Finding the atomic mass of an element on the periodic table will allow you to calculate its molar mass. Sulfur, for instance, has a molar mass of 32.066 g/mol if its atomic mass is 32.066 amu.

Scientists may readily translate between mass, number of moles, and number of atoms using dimensional analysis by understanding the link between the molar mass (g/mol), moles (mol), and particles.

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Volume is the amount of space an object takes up. It is typically measured using cubic units, and estimated using a variety of formulas. For example, a rectangular bathtub that is 1 foot tall, 2 feet wide, and 4 feet long will have a volume of 8 cubic feet.

Finding the volume of an object can help us to determine the amount required to fill that object, like the amount of water needed to fill a bottle, an aquarium or a water tank.

“Volume is the measure of the 3-dimensional space occupied by matter, or enclosed by a surface,” according to the National Institute of Standards and Technology’s U.S. Office of Weights and Measures. Simply stated, it is the amount of liquid or gas that will take up a defined space.

Commonly measured in cubic units, the standard unit of volume is a cubic meter. Depending on what you are measuring, you can then break it down into the smaller cubic decimeter—known as a liter—and the cubic centimeter, better known as a milliliter

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[tex]NH_{3}[/tex] and [tex]BF_{3}[/tex] are both polar molecules.

This is because [tex]NH_{3}[/tex] has a net dipole moment due to its asymmetrical arrangement of electron distribution, while [tex]BF_{3}[/tex] has a non-zero dipole moment due to its trigonal planar shape.

[tex]NH_{3}[/tex] has a net positive charge at its central nitrogen atom due to the lone pair of electrons, while [tex]BF_{3}[/tex] has a net negative charge at its central boron atom due to its three bond pairs of electrons.

This difference in charge distribution of the two molecules results in a net dipole moment in each molecule.

In conclusion, [tex]NH_{3}[/tex] and [tex]BF_{3}[/tex] are both polar molecules, but [tex]NH_{3}[/tex] is more polar than [tex]BF_{3}[/tex] due to its asymmetrical electron distribution and higher dipole moment.

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The result of two or more atoms combines chemically is a molecule. A molecule can also be referred as a compound. Hence the answer to the question is Option A.

Any substance or matter that undergoes a chemical change occurring in a given reaction, especially present at the start of the reaction is called a reactant.

A substance or matter in a state in which it expands freely to fill the whole of space as in container, having no fixed shape (unlike a solid) and having no fixed volume (unlike a liquid) is called a gas.

One of a class of substances or components, that cannot be separated or divided into simpler substances by any chemical means is called an element.

A distinctly formed substance formed by chemical union of two or more ingredients/components such as atoms in definite proportion by weight is called a molecule. A molecule is a group or combined state of two or more atoms held together by chemical bonds.

A compound is a substance/matter which is formed by two or more different types of elements/atoms of elements which are united chemically in a fixed proportion.

Thus, All molecules are not compounds. But, All compounds are molecules.

Hence, the correct answer should be Option A i.e. compound.

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Answer:

compound

Explanation:

no.

So, the empirical formula will be CHCl3.An ideal anesthetic was originally sought after via the use of the organic chemical chloroform.This substance has a 120.98 g/mol molar mass.

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The total relative formula ma (Mr) for CuO is 79 and H2SO4 is 98

What is relative formula mass?

The total of the relative atomic masses of the atoms represented by the numbers in the formula represents the relative formula mass of a substance composed of molecules.

Copper II sulfate is a cyan-blue chemical that is produced when copper (II) oxide, a black solid, reacts with sulfuric acid. Water and copper (II) sulfate are produced by the reaction of copper (II) oxide with sulfuric acid. This reaction can be categorized as either a neutralization reaction or a double displacement reaction.

CuO(s) + H2SO4 (aq) → CuSO4 (aq) + H2O(l)

Relative formula mass, Mr for:

CuO: 63 + 16 i.e. 79

H2SO4: 1*2 + 32 + 4*16 i.e. 98.

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Cations are always smaller than the atoms from which they form. Anions are always larger than the atoms from which they form. Ions are usually bigger than the atoms from which they are formed.

When an atom receives or loses electrons, the atom's electron configuration changes, resulting in a net positive or negative charge.

This net charge expands the electron cloud surrounding the nucleus, making the ion bigger in size than the neutral atoms from which it arose. When a metal atom loses one or more electrons to create a cation, it shrinks in size because the positive charge of the nucleus pulls the remaining electrons more strongly.

When a nonmetal atom obtains one or more electrons to create an anion, it normally expands in size.Because of the increasing amount of electrons, the electron cloud surrounding the nucleus grows. It should be noted that this comparison is not absolute and is dependent on the individual factors involved. Some ions are smaller than their neutral atom counterparts, while others are similar in size.

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The complete question is:

Compare the size of ions to the size of atoms from which they form.

Explanation:

It depends on the solution

If it's water it becomes

Mg + H2O »»» Mg(OH)2 + H2

But if it's any acid it becomes magnesium salt and still liberates hydrogen gas

The atomic number of hydrogen is 1.

Key points:

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Magnets on a railroad provide electricity to a train by electrifying the propulsion loops generates magnetic fields that both pull the train forward from the front and push it forward from behind.

A magnetic field is described as a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

Electrodynamic suspension (EDS) uses superconducting electromagnets or strong permanent magnets that create a magnetic field, this  magnetic field induces currents in nearby metallic conductors when there is relative movement and hence  pushes and pulls the train towards the designed levitation position on the guide way thereby providing electricity.

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The standard heat of vaporization of H₂0 is +2.5 kJ/g.

The standard heat of formation  of a compound is described as the change of enthalpy during the formation of 1 mole of the substance from its constituent elements in their reference state, with all substances in their standard states.

To calculate it, we need to divide the total energy required to change the 20g of H₂0 to steam by the amount of substance being vaporized.

The amount  is 20 g

the total energy required = 50kj

Therefore the standard heat of vaporization of H₂0 is   20/50 = +2.5 kJ/g

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1st question : There will be 308.76 liters of H₂ in 13.75 moles. 2nd question : There will be 24.48 moles of 548 liters of O₂ .

For first part, Given we have 13.74 moles of H₂. We know its molecular mass which is 2 grams/mole. Now calculating the total mass :
⇒molecular mass x moles

⇒ 2 x 13.74

⇒27.48 grams

Now, we know that density = mass/volume, Therefore, Volume = mass/density. The density of Hydrogen gas is 0.089 g/l

∴ total mass/ density = volume

⇒27.48 grams/0.089 g/l

⇒308.76 liters

For 2nd part, We can calculate total mass of Oxygen gas by the same density formula which is mass = density x volume. The density of oxygen gas is 1.43 g/l. Therefore,

⇒1.43 x 548

⇒783.64 grams

Now, we can calculate moles by dividing total mass by molecular mas (molecular mass of oxygen gas is 32 grams/mole)

⇒ 783.64/32

⇒24.48 moles

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Metal X replaces Metal Y ions in a solution because it is lower in the activity series than Metal Y. It is a single displacement reaction.

Metal X is above Metal Y in the reactivity series when replacing Metal Y from its respective salts.This replacement is guaranteed since X has a greater reactivity power than Y. If it were less than Y, it wouldn't cause a reaction since it wouldn't move Y.

A single replacement reaction, also known as a single displacement reaction, occurs when one element in a molecule is swapped out for another. Starting ingredients are always pure elements combined with an aqueous compound, such as pure hydrogen gas or zinc metal. A new aqueous compound and a different pure element will be produced as products when a replacement reaction takes place. Below is a general representation of a single replacement reaction.

A+B+C→A+CB

Single displacement reaction occurs where metal X replaces metal Y ions in the solution

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Chloroform ([tex]CHCl_{3}[/tex]) is a polar molecule due to its asymmetrical shape.

The asymmetrical shape of the molecule [tex]CHCl_{3}[/tex] arises from the presence of the chlorine atom, which has a higher electronegativity than the hydrogen atoms.

This results in the chlorine atom having a partial negative charge and the hydrogen atoms having a partial positive charge.

This unequal distribution of charge gives the molecule a permanent dipole moment, making it a polar molecule and hence chloroform is not a nonpolar molecule.

Additionally, due to the large difference in electronegativity between the chlorine and hydrogen atoms, the molecule exhibits significant dipole-dipole intermolecular forces, which further reinforces its polarity.

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The balanced equation would be [tex]16Cr(s) + 3S_8(s) --- > 8Cr_2S_3 (s)[/tex].

A balanced chemical equation will have as many atoms of different elements in the products as in the reactants. In other words, a balanced chemical equation will obey the law of conservation of atoms.

According to the law of conservation of atoms, atoms can neither be created nor destroyed but can be converted from one form to another during the course of chemical reactions.

Following this law, the balanced equation for the reaction would be [tex]16Cr(s) + 3S_8(s) --- > 8Cr_2S_3 (s)[/tex]

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Answer: #1 is the awnser

Explanation: trus me

Phosphorous at 18.9%. According to analysis, sodium, phosphorus, and oxygen make up 42.1%, 18.9%, and 39% of sodium phosphate, respectively.

The ratio of the amounts of each element to the sum of the individual element amounts present in the compound, multiplied by 100, is the definition of the percentage of a given compound. In this instance, the quantity is expressed in grams of the constituent ingredients.

The proportional mass of each component of a compound is known as the percent composition. The mass percent of a compound is the weight of an element expressed as a share of the complex's overall mass. For instance, a molecule of water has a structure of one oxygen atom and two hydrogen atoms.

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Answer:

The temperature is kept constant. What new volume does the gas occupy? Two hundred liters of gas at zero degrees Celsius are kept under a pressure of 150 kPa.

Explanation:

Oxygen gas is at a temperature of 40°C when it occupies a volume of 2.3 liters. 

Answer:

Pretty sure it's A

Explanation:

360 moles of NaOH are needed to make with 45 120 mL of 15% solution.

The term mole is defined as one mole of any substance is exactly equal to its atomic mass or molecular mass. It is expressed in grams.

The mole is also define as the amount of substance of a system which contains as many elementary entities. 1 mole = 6.023 X 10²³

Multiply the molarity by the volume of solution to get the number of moles of solute.

moles of solute = molarity × volume of solution

= 45 × 120 / 15

= 360 moles.

Thus, 360 moles of NaOH are needed to make with 45 120 mL of 15%  solution.

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