Please help!
Given the following reaction,
3H2SO4(aq)+Ca3(PO4)2(s)⟶3CaSO4(s)+2H3PO4(aq)
If 1.25x10^5 kg of H2S)4 react, how many kilograms of H3PO4 are produced?
Thank you!

To balance a chemical equation, you can only adjust the coefficients; you cannot change the subscripts. The ratios of the atoms in the molecule and the resulting chemical characteristics are altered by changing subscripts.

Changing the coefficients solely affects the quantity of molecules in that specific chemical. However, modifying the subscripts will change the substance itself, rendering your chemical equation incorrect.

You can determine the substance from the subscript. You can find out how much of each element is present in the molecule. The substance itself would change if it were altered. In contrast, simply altering the coefficient results in a change in the number of molecules.

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Capillary action involves the hydrogen bonding in water.

We have to note that when we are talking about capillary action, what we mean is the movement of water up the paper. We know that this movement of water would have a lot to do with the kind of intermolecular interaction that is going on.

Note that the water is composed of polar O-H bonds that can be able to interact with the -OH bonds that can be seen in the cellulose that is water and this accounts for the capillary action in water.

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Only the molecules of NO, SO2 are polar. These chemicals are referred to as polar solvents since they have both positive as well as ends.

a structure where the density of electrons is unevenly distributed. Nonpolar refers to a structure where the density of electrons is more or more uniformly distributed. Numerous physical, molecular, and ecological properties of molecules are influenced by polarity, which can take many different forms.

A polar molecule bond is one in which there is an electrostatic potential difference in between atoms of between 0.5 and 2.0. A polar covalent link is a type of covalent bond with which the atoms are attracted to electrons in uneven amounts, resulting in looked.

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[Ar]4s23d6 the electron configuration of the metal ion in Fe(NO3)3.

The noble gas krypton, which is isoelectronic with As arsenic 3 ion (As3), is isoelectronic with [Ar]3d104s2sp6 because it has gained three electrons.

Transition-metal ions are frequently referred to as having dn configurations because their valence electrons are mostly found in d orbitals. For instance, it is claimed that the Co3+ and Fe2+ ions have a d6 configuration.

The number of protons in the atomic nuclei of arsenic, abbreviated As, is 33. 33 electrons would likewise be present in a neutral As atom.

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Answer:

Explanation:

A proton has a relative mass of 1. A neutron has a relative mass of 1. An electron has a relative mass of 1/1840. (accept 0)

An atom of phosphorus, which has a proton mass number of 31 has 15 protons, 15 electrons, and 16 neutrons.

Atom- The fundamental units of matter are atoms. They have a single nucleus, which is surrounded by a small number of protons and electrons.

Element- A species of atom known as an element is one that cannot decompose further. They only contain one kind of atom with the same quantity of protons.

Role of Neutron-

Neutron's charge is neutral. The element's mass is made up of protons and neutrons.

The neutrons' main function in an atom's nucleus is to contribute to the nuclear glue or binding energy that binds the nucleus itself together. Remember that protons and neutrons make up an atomic nucleus.

Positively charged protons don't get along with one another.

Neutrons are added to the structure to make up for the so-called mass deficit in order to counteract the protons' attractive forces.

In order to keep the nucleus together, the nucleons—the protons and neutrons in a nucleus—lose a little bit of mass that is transformed into binding energy.

Proton has  relative mass of 1 while   neutron has  relative mass of 1. While that of an electron has  relative mass of 1/1840.In phosphorous there are 15 electrons , protons and 16 neutrons.Atoms of same type combine to form element.Neutrons contribute to mass of atom hence change in number will make atom unstable.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

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The flask A, flask B, flask C, all have equal average kinetic energy at 0°C.

The average kinetic energy of the particles in a gas is inversely related to its temperature. These particles must move more quickly as the gas warms because their mass is constant.

KE avg = 3/2RT

As a result, it is possible to state that average kinetic energy depends on temperature. As a result, as the temperature rises, the gas molecules become more energetic and move at a faster rate.

The average kinetic energy also stays the same because, in accordance with the question, the temperature is constant across all flasks.

Therefore, the average kinetic energy of flasks A, B, and C at 0°C is the same.

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Complete question is " Consider three identical flasks with different gases:

Flask A: CO at 760 torr and 273 K

Flask B: N₂ at 250 torr and 273 K

Flask C: H₂ at 100 torr and 273 K

In which flask will the molecules have the greatest average kinetic energy per mole?

[tex]NH_{4} Br[/tex](aq ) is expected to have a Ph less than 7 as on dissociation the following constituents will separate

[tex]NH_{4} Br[/tex]    +  [tex]H_{2}O[/tex]    → [tex]NH_{4} OH[/tex](weak base)    +   [tex]HBr[/tex] (strong acid)

A weak base is a strong acid hence B is  correct

[tex]LiNO_{3}[/tex] It is a salt of a strong base and weak acid hence basic  and a PH greater than 7

[tex]MgCl_{2}[/tex]it is a salt of a strong base and strong acid hence a neutral solution of PH 7

[tex]RbCH_{2} H_{3} O_{2}[/tex] It is a salt of a strong base and weak acid hence basic  and a PH greater than 7

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Using a logarithmic scale with 7 as neutral, lower values are more acidic and higher values are more alkaline, the acidity or alkalinity of a solution is expressed. where c is the number of moles of hydrogen ions present per litre. So pH 2 is 1000 times stronger than pH 5, and vice versa.

For instance, a pH of 2 is 10,000 times more acidic than a pH of 3 and a pH of 5 is 10,000 times more acidic. Ten times as alkaline as a pH of 10 is a pH of 11.

Each whole pH value is ten times more acidic than the next higher value since the pH scale is logarithmic.

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The atomic size of a magnesium ion is smaller than the atomic size of sodium ion.

The distribution of electrons in an element's atomic orbitals is known by its electronic configuration. Atoms' electron configurations adhere to a standard nomenclature in which all atomic subshells that contain electrons are arranged in a sequence with the number of electrons they each hold expressed in superscript.

the electronic configuration of each element's electrons:

Na-[tex]1s^{2}2 s^{2}2 p^{6} 3s^{1}[/tex]

Mg-[tex]1s^{2} 2s^{2} 2p^{6} 3s^{2}[/tex]

The magnesium atom is smaller than the sodium atom because its nuclear charge is larger (12+) than that of sodium (11+), according to the electron configuration. The electrons will be drawn more strongly to the magnesium nucleus, reducing the size of the atom.

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The surface temperature of a block of solid carbon dioxide (dry ice) is -78.5 degrees Celsius (-109.8 degrees F). Once it reaches this temperature, carbon dioxide completely bypasses the liquid state and transforms into a gas. One pound of dry ice produces 250 liters of carbon dioxide gas!

Carbon dioxide in the form of dry ice is employed. Sublimation is the process by which CO2 transforms from a solid to a gas without first undergoing a liquid phase, and it takes place at pressures lower than 5.13 atm and temperatures higher than 56.4 °C (216.8 K; 69.5 °F) (the triple point).

When a substance changes immediately from a solid to a gas without melting beforehand. The carbon dioxide is still present; it simply passes.

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Answer:

Sublimation

Explanation:

C

Considering the definition of molar mass,  the mass in 2.6 moles of C₈H₁₂ is 0.2808 kg.

The molar mass of an atom or molecule is the mass of one mole of that particle expressed in grams.

The molar mass of a compound is the sum of the molar mass of the elements that form it multiplied by the number of times they appear in the compound.

Being the molar mass of C₈H₁₂ 108 g/mole, you can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 108 grams, 2.6 moles of the compound contains how much mass?

mass= (2.6 moles× 108 grams)÷ 1 mole

mass= 280.8 grams= 0.2808 kg (being 1000 gr= 1 kg)

Finally, the mass is 0.2808 kg.

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Fe which is Iron is the element that distinguishes between fission and fusion processes in terms of binding energy per nucleon.

Since the negatively charged electrons are held in place by the electrostatic pull of the positively charged nucleus, the electron binding energy is the lowest energy needed to remove an electron from an atom. Fe element distinguishes between fission and fusion processes in terms of binding energy per nucleon. In particle physics, the term "binding energy" describes the energy an atom receives from electromagnetic interaction as well as the quantity of energy needed to break an atom down into free nucleons.

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The isotope that when bombarded with nitrogen-15 yields the artificial isotope dubnium-260 plus 4 neutrons is californium-249.

Californium-249 is a heavy element and when bombarded with nitrogen-15, which is a light element, undergoes a nuclear reaction known as a "cold" fusion reaction. This reaction results in the formation of the artificial isotope dubnium-260, which has a higher atomic number than the starting element and the release of 4 neutrons.This process is known as a Nuclear Transmutation, which is a process in which one element is converted into another element by bombarding it with a beam of particles such as protons, neutrons, or other ions.

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The group number of the element in the periodic table is equal to 15 as it has five valence electrons. Therefore, .option D is correct.

Valence electrons can be explained as the electrons occupying the outer shell of an atom while the electrons placed in the inner shell are known as core electrons. Lewis structures of the elements can be helpful to calculate valence electrons and know the types of bonds.

Valence electrons can be filled in different shells, causing interaction between atoms and leading to the formation of chemical bonds.

The five elements have five electrons in their valence shell therefore it belongs to nitrogen family. The group number can be calculated as 10 + 5 = 15

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A total volume of 100 mL of solution is created by mixing 5g of NaCl with water. The NaCl solution has a molarity of 0.151515.

Weight of NaCl=5 gm.

No.of moles of NaCl = Weight/ Mole .Wt =5/58.5= 0.08547

Weight of water= 100 gm.

Number of water moles = Weigh/Mole Wt =100/18=5.55556

Mole. Fraction of NaCl

=No.of moles of NaCl/ No.of molesNaCl+H2O =0.08547/(0.08547+5.55556)

=0.08547/5.64103 =0.151515

The amount of moles of a solute in a litre of solution is known as its molarity. A capital M is used to represent molarity.

A solution in chemistry is a combination of two or more compounds in which neither ingredient undergoes a chemical transformation. For instance, salt water is a solution that contains both salt and water (the solvent) (the solute). The concentration of a material in a solution is its amount of dissolution. In other words, it refers to the number of ingredients that have been added to your drink. In molarity, concentration is often expressed.

A mole is a fundamental chemical unit. It is the mass of a substance (in grammes) that has the same number of atoms, molecules, or ions as 12 grammes (6.022 x 1023) of carbon-12.

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When mixing and storing materials, volumetric flasks are utilized to determine volumes.

A volumetric flask is a piece of plastic or glass lab equipment used to make solutions. It is applied to prepare a solution with a specific volume. Compared to beakers or Erlenmeyer flasks, volumetric flasks can be used to measure volumes significantly more precisely.

When it's important to know the volume of the mixture being made exactly and properly, a volumetric flask is utilized. Similar to volumetric pipets, the size of a volumetric flask varies according to the solution volume that is being made.

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The relative acidity of orange juice compared to pure water is 1000times. The relationship between acid strength and pH is inverse.

A scale that historically denoted "potential of hydrogen" was used to describe how basic or acidic an aqueous solution was. The pH values of acidic solutions are typically lower than those of basic or alkaline solutions. The pH scale can be used to gauge how strong an acid is. Higher pH values result in weaker acids, while lower pH values result in stronger acids. Therefore, we may conclude that the relationship between acid strength and pH is inverse.

Given the pH of orange juice = 4

Then concentration of orange juice (M1) = 10^-4M

pH of pure water = 7

The concentration of [H+] in water (M2) = 10^-7M

The relative pH = 10^-4/10^-7 = 10^3

Hence  its relative acidity compared to pure water is 1000 times.

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The mole is the fundamental unit of substance quantity in the SI. 0.041143797572516 moles make up 1 gram of magnesium. The grams to moles formula Use the grams to moles formula to calculate the number of moles, n, of a substance with a given mass, m, (in grams) accurately. n = m / M.

Depending on the substance, yes. As a reminder, a mole is equal to 6.02 1023 atoms and is used to measure quantities. Therefore, it stands to reason that lead and hydrogen would weigh differently. Less moles would be required because it would take a lot fewer lead atoms to make up 1 gram. However, one hydrogen atom has far less mass than one lead atom, therefore more atoms (and moles) would be required to create one gram.

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from the given pair,  Cu 2+  is the  specie that would you expect to be the stronger Lewis acid- Cu 2+

A Lewis acid is a chemical species that can accept a pair of electrons to form a covalent bond. It is named after Gilbert N. Lewis, who first proposed the concept in 1923. In general, a Lewis acid can be any atom, ion or molecule that has an empty orbital that can accept an electron pair from a Lewis base. The Lewis base is a species that can donate a pair of electrons to form a covalent bond.Examples of Lewis acids include metal cations, such as Al3+ and Fe3+, and neutral molecules that have a vacant orbital, such as BF3 and AlCl3. Inorganic compounds like H+ and boron trifluoride (BF3) are also examples of Lewis acids. It is important to note that the Lewis acid-base theory is an extension of the Bronsted-Lowry acid-base theory. This theory only considers the transfer of protons, but Lewis theory consider electron pair transfer.

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12mol ratios can be obtained .

The net ionic equation is a chemical equation that only depicts the elements, compounds, and ions that are directly involved in the chemical process.
As previously stated, we employ net ionic equations to highlight the molecules that change throughout the reaction. It makes it simple to identify the active molecules in a reaction since they are the only ones in the equation.

Fill in the blanks with the balanced molecular equation.
For each substance, write the state (s, l, g, aq).
Break down strong electrolytes into ions (the complete ionic equation).
Remove the spectator ions from both sides of the full ionic equation.

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To solve this we must be knowing each and every concept related to isomer. Therefore, two  geometric isomers are possible for the complex [CrF[tex]_3[/tex]Br[tex]_3[/tex]]₃⁻.

An isomer is a chemical substance that has the same number and kinds of atoms like another chemical species that differs from it in terms of attributes due to the way the atoms are organized.

Stereoisomerism includes geometric isomerism. It is sometimes referred to as E-Z isomerism or cis-trans isomerism. Geometric isomerism is caused by cyclic compounds' constrained rotation around carbon-carbon double or single bonds.  The complex [CrF[tex]_3[/tex]Br[tex]_3[/tex]]₃⁻ has two  geometric isomers, one is facial and other is meridional.

Therefore, two  geometric isomers are possible for the complex [CrF[tex]_3[/tex]Br[tex]_3[/tex]]₃⁻.

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In chemistry, a sigma bond (σ bond) is a chemical bond formed by the overlap of two atomic orbitals. On the other hand, a pi bond (π bond) is a chemical bond formed by the overlap of two p orbitals.

Sigma bonds are the strongest type of covalent bond, with a bond strength of about 280-350 kJ/mol. They are also the shortest bond, with an average length of about 0.15 nanometers (nm).

Sigma bonds are characterized by their short bond length and high bond energy. They are also directional, meaning that they are stronger in certain orientations than in others.

Pi bonds are weaker than sigma bonds, with a bond strength of about 70-100 kJ/mol. They are also longer than sigma bonds, with an average length of about 0.2nm.

Pi bonds are characterized by their longer bond length and lower bond energy compared to sigma bonds. They are also less directional than sigma bonds, meaning that they are relatively equally strong in all orientations.

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Covalent bonds has two types which are a sigma bond is a chemical bond formed by the overlap of two atomic orbitals and a pi bond (π bond) is a chemical bond formed by the overlap of two p orbitals.

Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.

Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.

Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.Compounds having covalent bonds have lower melting points as compared to those with ionic bonds.

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Answer:

PROPYL ETHANOATE (OR PROPYL ACETATE)

Explanation:

1st step: Identify the functional group of the compound.

             COO is present, hence it is an ester.

2nd step: Split up the compound into CH3COOH and CH3CH2CH2OH.

                 Comes from ethanoic acid and propanol

3rd step: Join the names of the alcohol and the carboxylic acid together.

               Hence, propyl ethanoate.

4 liters of 30% acid must be added to 2 liters of 15% acid to result in a mixture that is 25% acid.

To find the amount of 30% acid that must be added to 2 liters of 15% acid to result in a mixture that is 25% acid, we can use the concept of percentage concentration. The percentage concentration is defined as the ratio of the number of moles of solute (in this case acid) to the total number of moles of the solution.

Let's call x the number of liters of 30% acid to be added. Then the final volume of the solution is (2+x) liters.We know that the final concentration of the solution is 25%, so we can write the following equation:

(moles of acid in 2 liters of 15%) + (moles of acid in x liters of 30%) / (2+x) = 0.25

We can now use the percentage concentration to find the number of moles of acid in each volume of acid:

moles of acid in 2 liters of 15% = (2L * 0.15) = 0.3 moles

moles of acid in x liters of 30% = (xL * 0.30) = 0.30x molesWe can now substitute these values in the equation above:

(0.3) + (0.30x) / (2+x) = 0.25

Solving for x we can find the volume of 30% acid that needs to be added to the 2 liters of 15% acid:

0.3 + 0.30x = 0.25(2+x)

0.3 + 0.30x = 0.5 + 0.25x

0.05x = 0.2

x = 4 L. Therefore, 4 liters of 30% acid must be added to 2 liters of 15% acid to result in a mixture that is 25% acid.

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Answer:

it is option no B using mole concept

Answer:

The correct answer is 77.0 g.

Answer is option C) Have low melting points.

Explanation:

As is common knowledge, small molecules make up molecular compounds, and these small molecules are held together by an intermolecular force. The intermolecular tensions in this situation are incredibly weak and simple to overcome when breaking it. Therefore, molecular compounds have low melting and boiling points because of weak intermolecular interactions.

Chemical substances known as molecular compounds assume the shape of distinct molecules. Examples include common substances like carbon dioxide and water. These substances differ significantly from ionic substances like sodium chloride. When metal atoms give up one or more of their electrons to nonmetal atoms, ionic compounds are created. The resultant cations and anions are drawn to one another electrostatically.

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The correct answer is 7.0 moles of AgNO3 will form 7.0 moles of Zn(NO3)2,

Mole ratio is the ratio between the number of moles of two substances that are involved in a chemical reaction. It is an important concept in stoichiometry, which is the study of the relationship between the amounts of reactants and products in a chemical reaction. Mole ratio is often expressed as a fraction, in which the numerator is the number of moles of one substance, and the denominator is the number of moles of the other substance.

Since the reaction is a 1:1 mole ratio of reactant to product:

AgNO3 → Zn(NO3)2

7.0 mol AgNO3 → 7.0 mol Zn(NO3)2

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For a certain brand of gasoline, which has a density of 0.733 g/mL at 25 oC, 41848 grammes would fill a 10.7 gal tank. Mass in relation to volume is referred to as density.

Although the Latin letter D can also be used, the symbol for density is most frequently written as (the lower case Greek letter rho). Any combination of gases can be considered a gas gas solution. As a result of their great distance from one another, gas molecules typically only interact very little. All gases can therefore be thought of as being soluble in one another.

15x 3785.41 ml = 56781.15 ml. Consequently, the mass is calculated as 0.737g/ml x 56781.15 ml = 41848 grammes.

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