Unknown element X forms an ion with a plus 2 charge (X2+). Unknown element Z forms an ion with a negative 3 charge Z3-). What is the formula for the ionic compound formed when X bonds with Z?

To produce a 1.20 molarity solution with 0.60 mol propylene glycol, 0.5 kg volume of water is needed.

A synthetic liquid material that absorbs water is called propylene glycol. Additionally, polyester compounds and the foundation for deicing solutions are made with propylene glycol. When a leak could result in contact with food, the chemicals, food, and pharmaceutics utilize propylene glycol as an antifreeze.

The majority of processed foods include propylene glycol in some amount. Despite its low toxicity, eating a lot of foods that contain it can have negative effects on your health. Avoiding goods that contain the chemical is the greatest defense. Instead

M: 1.20

moles: 0.60

Kg:?

(m)(kg)/(m)= 0.60/1.20= 0.5Kg

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Fuel cell automobiles use hydrogen gas to electricity an electric powered motor. Unlike traditional automobiles which run on gas or diesel, gas cell motors and vehicles integrate hydrogen and oxygen to supply electricity, which runs a motor.

The gas cell electricity plants generate warmth and water as by-merchandise of electrical electricity generation. The extra warmth is directed to gas cell warmth exchangers, in which the extra warmth is rejected to Freon coolant loops. The water is directed to the potable water garage subsystem.

Liquid Hydrogen (LH2) Rocket Fuel.

The Saturn rockets used it for his or her secondary degree engines. Later the NASA area commute could use it to electricity its 3 most important rocket engines. Liquid hydrogen gas has many benefits, consisting of its low molecular weight and excessive power output whilst burned collectively with liquid oxygen.

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The specific heat capacity of the subtance of mass 345 g is 447.47 J/kgK. And the process is exothermic.

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

To calculate the specific heat capacity of the susbtance, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Since the process absorb heat, it is endothermic.

Hence, the specific heat capacity of the subtance is 447.47 J/kgK. And the process is endothermic.

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The total ions which would be present in indium fluoride is +2

It follows that indium is an element which has an ion of +3 while fluorine has +1 ion. So therefore, adding these two ions together in the formula of this compund indium fluoride is given below:

+3 + (-1)

= +3 - 1

= +2

That being said, this indium fluoride has a number of properties. Some of it few properties are as follows:

In conclusion, it can be deduced from the explanation above that indium fluoride is a compound.

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1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1  electron configuration for the common monatomic ion formed by the element rubidium , Rb.

The shape and energy of an atomic species' electrons may be understood by looking at its electron configuration, which is the accepted nomenclature for describing an atom's electronic structure, whether it be neutral or ionic. We allow each electron to occupy an orbital under the orbital approximation, which can be solved by a single wavefunction. By doing this, we are able to produce the identical three quantum numbers (n, l, and ml) that were produced when Schrodinger's equation for Bohr's hydrogen atom was solved.

The Aufbau Principle, Hund's Rule, and Pauli-Exclusion Principle are three broad guidelines for determining the electron configuration of an atomic species.

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Yes,  metals and metals make bonds with one another forming a new substance.

Metallic bonds occur between metal atoms whereas ionic bonds combine metals with non-metals. The metallic bonding joins metal atoms with each other. A sheet of aluminum foil and a copper wire are fused with the help of metallic bonding.

Metallic bonding is mostly non-polar because in alloys there is less difference among the electronegativities of the atoms that contribute to the bonding interaction of the two metals. Thus, metallic bonding is an extremely delocalized form of covalent bonding. Metals can make a bond with each other on macroscopic level as well as on a molecular level. The pieces of metal are held together with the help of metallic bonding.

So we can conclude that metals and metals do the same as metals and non-metals.

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When 0.0750 mol of chloroacetic acid and 0.0180 mol of sodium paients are combined with 1.00 l of water, the resulting solution has a pH of 2.373.

Stronger than acetic acid CH3-COOH is chloroacetic acid Cl-CH2-COOH. Cl is a group that removes electrons. By dispersing negatively charged by an inductive effect and stabilising the acetate anion, it makes acetic acid more acidic.

In chloroacetic acid, the Cl- ion has a -I effect that lowers the electron of the carboxylic group's O-H bond, whereas in acetic acid, the CH3 group has a +I impact that raises the O-H bond's electron density. Consequently, acetic acid is less acidic than chloroacetic acid.

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A process that approaching equilibrium will have a constant universal value.

Equilibrium constant value is the ration of the concentration of the product over reactant. we can use the value of K to predict whether the reactant and product of the reaction are at equilibrium or not. When a reaction approach equilibrium both the forward and reverse reaction are occuing. At equilibrium, the foreward and reverse reaction are at the same rate. That means when the has reached a point where the concentration of the reactant and product remains unchanged with time. It is because both the reaction have same rate. The value of the equilibrium is the ratio of the concentration of the product over the reactant.

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Answer:

Gravity

Explanation:

it is what hold people on the earth

"Will group 16 elements gain electrons to bond with group 2 in an XY format in periodic table  would a student need to know in order to figure out a formula for compound containing a group 16 nonmetal.

From one side of the periodic table to the other, properties of elements within a period vary in a predictable manner. A horizontal row represents a period in the periodic table. The number of electron shells is the same for every atom in a row. Moving through a period causes elements to acquire electrons and protons and become less metallic. -Elements in the same period have the same number of electron shells.

As the atomic number rises, comparable features reoccur on a regular basis, which is reflected in this arrangement. From one side of the periodic table to the other, properties of elements within a blank shift in a predictable manner. those with comparable qualities are displayed in a column.

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The actual yield cannot be calculated if the only theoretical yield is given.

Percent yield can be computed by dividing actual yield by theoretical yield. So in order to compute the unknown value 2 known values are to be given.

So, to find the actual yield, the values of percent yield and theoretical yield is to be known. If these two values are known then, the actual yield could be computed by-product of theoretical yield and percent yield.

This could be mathematically given as,

Percent yield = Actual yield/Theoretical yield

Actual yield = Percent yield x Theoretical yield

Therefore, without the percent yield value, the value of the actual yield cannot be computed if the only theoretical yield is given.

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The average atomic mass of an element may not equal the mass of any of its isotopes.

Hence, option A is correct.

What is the meaning of atomic mass or weight?

Atomic Mass  can be defined as the average mass of atoms of an element, which can be calculated using the relative abundance of isotopes in a naturally-occurring element. It indicates the size of an atom. Mass of molecules can be determined by adding the average atomic mass of each atom in the molecule.

Example of Atomic mass is

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The exothermic process be non-spontaneous.

What is exothermic process?

Exothermic reactions are those in which energy is released chemically as heat or light. The chemical equation for these reactions, which are the opposite of endothermic reactions, is as follows: Products plus energy equals reactants.

What is entropy?

Entropy can be defined in terms of the statistical probabilities of a system or in terms of the other thermodynamic quantities and is simply a measure of how much the energy of atoms and molecules spreads out during a process.

Therefore, the G = H-TS equation illustrates how a high temperature and a negative entropy can cause an exothermic reaction to be non-spontaneous.

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An ionic compound that uses neon is that neon does not easily form ionic compound because neon belongs to noble gases and they are extremely stable and their reactivity is practically nil.

Neon is belongs to group 18 which is noble gases. noble gases have 8 valence electron in the outer most shell and that follow the octet rule. noble gases are extremely stable in the periodic table. so, they are very less reactive or we can say that non reactive gases.

Thus, An ionic compound that uses neon is that neon does not easily form ionic compound because neon belongs to noble gases and they are extremely stable and their reactivity is practically nil.

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The new volume of a 4.00-liter sample of CO(g) when its pressure changes from 10.0 kPa to 70.0 kPa is 0.57L.

Boyle's law states that the pressure of an ideal gas is inversely proportional to its volume at constant temperature.

The volume of a gas can be calculated using the Boyle's law equation as follows:

P₁V₁ = P₂V₂

Where;

According to this question, a 4.00-liter sample of CO(g) had its pressure changed from 10.0 kPa to 70.0 kPa. The new volume can be calculated as follows:

4 × 10 = V₂ × 70

40 = 70V₂

V₂ = 0.57L

Therefore, 0.57L is the new volume of the gas.

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102.037 °c  is the boiling point of a solution that contains 1.00 kg of water .

Solution ∆Tb = 1 ×  given problem is based on colligative property elevation in boiling point

∆Tb = ikbm 

I is vanthoff factor

kB is boiling constant for solvent = 0.512 °c kg /mol 

m is molality = number of moles of solute ÷ mass of solvent (kg) 

Tb is elevation in boiling point

For water boiling point is 100 °c 

So the new temperature will be ( 100 °c + Tb )

A) ∆Tb = 1 × 0.512 × ( 3.98 ÷1) = 2.037°c 

Temperature of of compound is 102.037 °c 

B)∆Tb = 1 × 0.512 × ( 3.04 ÷1) = 1.55°c 

Temperature of compound is 101.55 °c 

C) ∆Tb = 2 × 0.512 × ( 2.77÷1) = 2.8 °c 

Temperature of compound is 102.8 °c 

D) ∆Tb = 4 × 0.512 × ( 4.20 ÷1) = 8.6°c 

Temperature of compound is 108.6 °c 

osmotic pressure = molarity × gas constant × temperature × vanthoff factor

For KCl & NaBr vanthoff factor is 2 .

At same temperature , 

Osmotic pressure of KCl / osmotic pressure of NaBr = molarity of KCl / molarity of NaBr = 0.25M /0.2 M = 1.25 

Ratio to be find out is 1.25 .

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The final volume of the hydrogen gas that is filled in a rubber ball at 10 °C is 2.495L.

The volume of a gas can be calculated using the following Charles's law equation;

V₁/T₁ = V₂T₂

Where;

According to this question, 2L of hydrogen gas is filled in a rubber ball at 10 °C. The final volume of the gas, if the temperature increases to 80 °C is as follows:

2/283 = V/353

V = 2.495L

Therefore, 2.495L is the final volume of the hydrogen gas.

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The mass of the piece of iron is 98.87grams.

Calorimetry is the science of measuring the heat absorbed or evolved during the course of a chemical reaction or change of state.

The calorimetry equation to evaluate the energy required or released is as follows:

Q = mc∆T

Where;

However, since two materials are involved, the following applies;

mc∆T (water) = - {mc∆T} (metal)

109.92 × 4.184 × (34.9 - 26.3) = - {m × 0.444 × (34.9 - 125)}

3,955.18541 = 40.0044m

m = 98.87grams.

Therefore, 98.87 grams is the mass of the iron metal.

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Chemical formulas show the number and type of atoms in the smallest representation of a substance.

In the field of chemistry, a chemical formula can be described as a representation of the different kinds of chemical elements that are present in a chemical reaction. The chemical formula also shows the number of atoms for each of the atoms that will be present in a chemical reaction or a chemical compound.

As chemical formulas only represent the types and no.of atoms, they are known to be the smallest representation that helps us to know what is present in a substance and what is the number of atom ratio of one element compared to another in that substance.

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Answer:

D.

Explanation:

The molecules shown are different, they are also not combined which means a mixture is shown.

Mixture is defined as when two or more than two components are mixed together. The samples shown contains a mixture is option D.

A substance made up of two or more separate chemical compounds that are not chemically linked is referred to as a mixture. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

A substance made up of two or more separate chemical compounds that are not chemically linked is referred to as a mixture. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

When two or more distinct substances physically join, a mixture is produced that can be dispersed back into its constituent parts.

Thus, option D is correct.

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The largest amount of Al₂O₃ produced from the reaction is 3.5 moles

What are limiting reactants?

A reactant that is completely consumed at the end of a chemical reaction is known as the limiting reagent. This reagent regulates the amount of product produced because the reaction cannot proceed without it.

Finding the limiting reactant,

4Al + 3O₂ —> 2Al₂O₃

From the balanced equation above,

4 moles of Al reacted with 3 moles of O₂.

Therefore,

7 moles of Al will react with = (7 × 3)/4 = 5.25 moles of O₂

From above, only 5.25 moles of O₂ out of 11 moles given, is needed to completely react with 7 moles of Al.

Therefore, Al is the limiting reactant and O₂ is the excess reactant.

Now, the largest amount of Al₂O₃ produced from the reaction. This can be obtained by using the limiting reactant as shown below

From the balanced equation above,

4 moles of Al reacted to produce 2 moles of Al₂O₃.

Therefore,

7 moles of Al will react to produce = (7 × 2)/4 = 3.5 moles of Al₂O₃.

Thus, the largest amount of Al₂O₃ produced from the reaction is 3.5 moles

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Answer:

Gadolinium 64

Gallium 31

Germanium 32

Explanation:

There is no such element as G in the periodic table.

What is an element?

A chemical element is a type of atom with a particular number of protons in the nucleus, such as the specific compound made up entirely of that species. Chemical elements, unlike chemical compounds, cannot be broken down into simpler substances by any chemical reaction. The number of protons in the nucleus is an element's defining attribute, and it is symbolised by the symbol Z - all atoms with the same atomic number are atoms of the same element. Atoms are rearranged into new compounds linked together by chemical bonds when various elements undergo chemical reactions.

There is no such element as G in the periodic table.

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It represents a polypeptide chain that is broken down through a hydrolysis reaction.

The backbone of DNA contains deoxyribose while the backbone of RNA contains ribose. A covalent bond is formed between the carbon and nitrogen atoms to form H2OH2O. The hydrophilic phosphate groups of phospholipid molecules are attracted to the aqueous internal and external environment.

The shape and charge of the substrate match the active site of the enzyme. Because the substitution reduced the mass of the enzyme, the mutant enzyme bound the substrate more weakly than the normal enzyme. There is no visible effect on the structure of the CFTR protein. It leads to the synthesis of proteins that aid in cell replication. DNA is usually double-stranded, with both strands oriented parallel, whereas RNA is usually single-stranded.

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Disclaimer:- Your question is incomplete,please see below for the complete question.

polypeptides are continuously being formed and degraded. one of these processes is shown. the figure presents the molecular structures of polypeptides. a molecule at the top of the figure has a backbone with six repeats of the following atoms: n, c, c. one r group, of the range r 1 through r 6, is bonded with the first c of each the n, c, c repeats. an arrow that is joined by another arrow labeled h 2 o points to two shorter molecules, each with only three repeats of the atoms: n, c, c. one of the shorter molecules has r groups r 1, r 2, and r 3. the other molecule has r groups r 4, r 5, and r 6. figure 1. polypeptide reaction which statement is the most accurate description of the reaction shown in figure.

What is molarity?

Molarity is defined as the number of moles of solute per liter of solution.

M = n / V

where

n = no of moles ( 2 mol)

M = Molarity ?

V = volume of solution ( 1 itre)

M = n / V

  = 2 mol / 1 litre

  = 2 mol/L

What is Osmolarity?

Osmolarity =  Molarity × number of particles of dissociation (n)

according to question, FeCl₃ = 1 Fe + 3Cl ,  where n = 4

Osmolarity = molarity × n

                  = 2 ×4

                  = 8 osmol / L

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The formula oh Hydride of of antimony is H3Sb.

Hydrides is the hydrogen anion with the the formula H-.It is the binary compound of the hydrogen with other elements .In this Hydrogen is covalently bonded. this is bonded to a less electronegative element. This only exists in extrema  condition. This consist of two electrons and a proton. Electronic configuration of hydride is 1S2.

[Kr]5s24d105p3 is antimony.

The formula of hydride in antimony is SbH3.This is a colorless gas and it is highly toxic. This is the main covalent hydride of antimony. This is also known as antimony hydride or hydrogen antimonite. This is the binary compound of Hydrogen with antimony.

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Answer:

   a) An element composed of atoms.

Explanation:

Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons,There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.

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Answer:

There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons.

Explanation:

d)A covalent compound (composed of molecules made

from more than one type of atom)

5.6 L of [tex]CH_{4}[/tex] contains the same number of molecules 5.6 L of [tex]H_{2}[/tex].

Define mole.

The mole is always the SI unit used to measure a substance's quantity.

Define molecules.

The smallest particle of a substance. It contains 2 or more atoms.

5.6 L of [tex]CH_{4}[/tex]:

No of moles=Given volume/molar volume

                    = [tex]5.6/22.4[/tex]

                    = [tex]0.25[/tex]

No of molecules=No of moles*Avagadro's number

                           = [tex]0.25*6.023*10^{23}[/tex]

                           = [tex]1.51*10^{23}[/tex]

5.6 L of [tex]H_{2}[/tex]:

No of moles=Given volume/molar volume

                     = [tex]5.6/22.4[/tex]

                     = [tex]0.25[/tex]

No of molecules = No of moles * Avagadro's number

                            = [tex]0.25*6.023*10^{23}[/tex]

                            = [tex]1.51*10^{23}[/tex]

Therefore, the answer is 5.6 L of [tex]H_{2}[/tex].

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The concentration of sodium ion in the final solution containing 100 ml of 0.100 m Na₂SO₄ and 200 ml of 0.150 m NaBr is 0.167 M.

The concentration of Na₂SO₄ is given as 0.100 M. So it is clear that 0.100 mol of Na₂SO₄ is present in 1 L of solution.

One mole of Na₂SO₄ contains 2 moles of Na⁺ ions and one mole of SO₄²⁻ ion.

Therefore, the concentration of  Na⁺ ion can be calculated as follows:

Concentration of  Na⁺ ions (M₁) = 2×0.100 M

                                                   = 0.2 M

Volume of Na₂SO₄ (V₁) = 100 mL

Similarly, 0.150 M NaBr is taken, which implies that 0.150 moles of NaBr are present in 1 L of solution.

One mole of NaBr contains 1 mole of Na⁺ ions and one mole of Cl⁻ ion.

Therefore, the concentration of Na⁺ ion (M₂) = 0.150 M

Volume of NaCl (V₂) = 200 mL

It is known that, M₁V₁ + M₂V₂ = MV

Where V is the total volume of solution, that is 100 mL+200 mL = 300 mL and M is the concentration of Na⁺ ion in the final solution. Equating values of M₁, V₁, M₂, and V₂ in the above equation is as follows:

0.2 M×100 mL +0.150 M×200 mL = M×300 mL

⇒M=0.2 M × 100 mL + 0.150 M × 200 mL/ 300 mL

⇒M= 0.1666 M

⇒M=0.167 M

Hence, the concentration of Na⁺ ion in the final solution is 0.167 M.

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The wavelength (cm) of radiation if its frequency is 1.50 x 1010 KHz is 2 × 10^(-7) m.

Frequency is defined as the number of occurrences of the Repeating event per unit of time. It is also defined as the occasionally which referred to as the temporal frequency which emphasize the contrast to the spatial frequency, and the ordinary frequency which emphasize the contrast to angular frequency.

Wavelength is defined as the distance between the two identical points (or adjacent crests) in the adjacent cycles of the waveform signal which is propagating in space or along a wire. In wireless systems, this length is mainly specified inc centimeters (cm), meters (m), or millimeters (mm).

As we know that,

Frequency is inversely proportional to the wavelength.

w = c / f

Given,

speed of. light = 3 × 10^6

w = 3 × 10^6/ 1.50 x 10^(13)

= 2 × 10^(-7) m.

Thus, we concluded that the wavelength (cm) of radiation if its frequency is 1.50 x 1010 KHz is 2 × 10^(-7) m.

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14 electrons in an atom can share the quantum numbers n = 4 and l = 3

32 electrons can be held in the energy level n = 4

An electron is negatively charged subatomic particles that can be either bound to an atom or free means not bound and fourteen electron can be represented by the value n = 4 and I = 3 and quantum number n = 4 is the fourth energy level and which can be thought of as the distance from the nucleus and if I = 3 the electron are in f subshell and the number of orbital with a quantum number I is 2I + 1 so there are 2×3+1 = 7 f orbital so each orbital can hold two electron and so the f subshell can hold 14 electron

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